Home / 58,510.13-87,711.89-21,061.40

Finding the Fourth Proportional to 58,510.13, 87,711.89 and 21,061.40

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Solution

The fourth proportional to 58,510.13, 87,711.89 and 21,061.40 is: 31,572.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,510.13 : 87,711.89 = 21,061.40 : x
  2. Step 2: Convert to fraction form
    58,510.13/87,711.89 = 21,061.40/x
  3. Step 3: Cross multiply
    58,510.13x = 87,711.89 × 21,061.40
  4. Step 4: Simplify right side
    58,510.13x = 1,847,335,314.02
  5. Step 5: Solve for x
    x = 1,847,335,314.02/58,510.13
  6. Step 6: Final answer
    x = 31,572.91

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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.