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Finding the Fourth Proportional to 60,347.60, 90,618.60 and 40,713.20

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Solution

The fourth proportional to 60,347.60, 90,618.60 and 40,713.20 is: 61,135.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,347.60 : 90,618.60 = 40,713.20 : x
  2. Step 2: Convert to fraction form
    60,347.60/90,618.60 = 40,713.20/x
  3. Step 3: Cross multiply
    60,347.60x = 90,618.60 × 40,713.20
  4. Step 4: Simplify right side
    60,347.60x = 3,689,373,185.52
  5. Step 5: Solve for x
    x = 3,689,373,185.52/60,347.60
  6. Step 6: Final answer
    x = 61,135.38

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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.