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Finding the Fourth Proportional to 67,810.10, 101,715.15 and 64,930.55

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Solution

The fourth proportional to 67,810.10, 101,715.15 and 64,930.55 is: 97,395.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,810.10 : 101,715.15 = 64,930.55 : x
  2. Step 2: Convert to fraction form
    67,810.10/101,715.15 = 64,930.55/x
  3. Step 3: Cross multiply
    67,810.10x = 101,715.15 × 64,930.55
  4. Step 4: Simplify right side
    67,810.10x = 6,604,420,632.83
  5. Step 5: Solve for x
    x = 6,604,420,632.83/67,810.10
  6. Step 6: Final answer
    x = 97,395.83

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1.5x scale

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.