Home / 81,254,081.70-112,108,942.08-48,186,838.53

Finding the Fourth Proportional to 81,254,081.70, 112,108,942.08 and 48,186,838.53

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Solution

The fourth proportional to 81,254,081.70, 112,108,942.08 and 48,186,838.53 is: 66,484,973.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,254,081.70 : 112,108,942.08 = 48,186,838.53 : x
  2. Step 2: Convert to fraction form
    81,254,081.70/112,108,942.08 = 48,186,838.53/x
  3. Step 3: Cross multiply
    81,254,081.70x = 112,108,942.08 × 48,186,838.53
  4. Step 4: Simplify right side
    81,254,081.70x = 5,402,175,489,778,082
  5. Step 5: Solve for x
    x = 5,402,175,489,778,082/81,254,081.70
  6. Step 6: Final answer
    x = 66,484,973.76

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.