Home / 81,185.16-112,040.64-45,377.76

Finding the Fourth Proportional to 81,185.16, 112,040.64 and 45,377.76

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Solution

The fourth proportional to 81,185.16, 112,040.64 and 45,377.76 is: 62,624.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,185.16 : 112,040.64 = 45,377.76 : x
  2. Step 2: Convert to fraction form
    81,185.16/112,040.64 = 45,377.76/x
  3. Step 3: Cross multiply
    81,185.16x = 112,040.64 × 45,377.76
  4. Step 4: Simplify right side
    81,185.16x = 5,084,153,272.17
  5. Step 5: Solve for x
    x = 5,084,153,272.17/81,185.16
  6. Step 6: Final answer
    x = 62,624.17

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1.5x scale

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.