Home / 81,787.14-112,854.02-45,970.32

Finding the Fourth Proportional to 81,787.14, 112,854.02 and 45,970.32

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Solution

The fourth proportional to 81,787.14, 112,854.02 and 45,970.32 is: 63,432.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,787.14 : 112,854.02 = 45,970.32 : x
  2. Step 2: Convert to fraction form
    81,787.14/112,854.02 = 45,970.32/x
  3. Step 3: Cross multiply
    81,787.14x = 112,854.02 × 45,970.32
  4. Step 4: Simplify right side
    81,787.14x = 5,187,935,412.69
  5. Step 5: Solve for x
    x = 5,187,935,412.69/81,787.14
  6. Step 6: Final answer
    x = 63,432.17

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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.