Home / 75,320.24-112,802.18-65,405.64

Finding the Fourth Proportional to 75,320.24, 112,802.18 and 65,405.64

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Solution

The fourth proportional to 75,320.24, 112,802.18 and 65,405.64 is: 97,953.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,320.24 : 112,802.18 = 65,405.64 : x
  2. Step 2: Convert to fraction form
    75,320.24/112,802.18 = 65,405.64/x
  3. Step 3: Cross multiply
    75,320.24x = 112,802.18 × 65,405.64
  4. Step 4: Simplify right side
    75,320.24x = 7,377,898,776.30
  5. Step 5: Solve for x
    x = 7,377,898,776.30/75,320.24
  6. Step 6: Final answer
    x = 97,953.73

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.