Home / 81,502.02-112,478.20-45,694.35

Finding the Fourth Proportional to 81,502.02, 112,478.20 and 45,694.35

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Solution

The fourth proportional to 81,502.02, 112,478.20 and 45,694.35 is: 63,061.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,502.02 : 112,478.20 = 45,694.35 : x
  2. Step 2: Convert to fraction form
    81,502.02/112,478.20 = 45,694.35/x
  3. Step 3: Cross multiply
    81,502.02x = 112,478.20 × 45,694.35
  4. Step 4: Simplify right side
    81,502.02x = 5,139,618,123.93
  5. Step 5: Solve for x
    x = 5,139,618,123.93/81,502.02
  6. Step 6: Final answer
    x = 63,061.24

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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.