Home / 87,312.40-130,927.13-39,913.43

Finding the Fourth Proportional to 87,312.40, 130,927.13 and 39,913.43

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Solution

The fourth proportional to 87,312.40, 130,927.13 and 39,913.43 is: 59,851.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,312.40 : 130,927.13 = 39,913.43 : x
  2. Step 2: Convert to fraction form
    87,312.40/130,927.13 = 39,913.43/x
  3. Step 3: Cross multiply
    87,312.40x = 130,927.13 × 39,913.43
  4. Step 4: Simplify right side
    87,312.40x = 5,225,750,838.36
  5. Step 5: Solve for x
    x = 5,225,750,838.36/87,312.40
  6. Step 6: Final answer
    x = 59,851.19

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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.