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Finding the Fourth Proportional to 60,310.60, 90,320.10 and 57,686.20

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Solution

The fourth proportional to 60,310.60, 90,320.10 and 57,686.20 is: 86,389.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,310.60 : 90,320.10 = 57,686.20 : x
  2. Step 2: Convert to fraction form
    60,310.60/90,320.10 = 57,686.20/x
  3. Step 3: Cross multiply
    60,310.60x = 90,320.10 × 57,686.20
  4. Step 4: Simplify right side
    60,310.60x = 5,210,223,352.62
  5. Step 5: Solve for x
    x = 5,210,223,352.62/60,310.60
  6. Step 6: Final answer
    x = 86,389.84

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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.