Home / 87,068.10-130,602.08-57,478.98

Finding the Fourth Proportional to 87,068.10, 130,602.08 and 57,478.98

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Solution

The fourth proportional to 87,068.10, 130,602.08 and 57,478.98 is: 86,218.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,068.10 : 130,602.08 = 57,478.98 : x
  2. Step 2: Convert to fraction form
    87,068.10/130,602.08 = 57,478.98/x
  3. Step 3: Cross multiply
    87,068.10x = 130,602.08 × 57,478.98
  4. Step 4: Simplify right side
    87,068.10x = 7,506,874,344.28
  5. Step 5: Solve for x
    x = 7,506,874,344.28/87,068.10
  6. Step 6: Final answer
    x = 86,218.42

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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.