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Finding the Fourth Proportional to 67,807.60, 101,711.40 and 42,924.40

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Solution

The fourth proportional to 67,807.60, 101,711.40 and 42,924.40 is: 64,386.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,807.60 : 101,711.40 = 42,924.40 : x
  2. Step 2: Convert to fraction form
    67,807.60/101,711.40 = 42,924.40/x
  3. Step 3: Cross multiply
    67,807.60x = 101,711.40 × 42,924.40
  4. Step 4: Simplify right side
    67,807.60x = 4,365,900,818.16
  5. Step 5: Solve for x
    x = 4,365,900,818.16/67,807.60
  6. Step 6: Final answer
    x = 64,386.60

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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.