Home / 50,711.52-75,701.40-42,847.20

Finding the Fourth Proportional to 50,711.52, 75,701.40 and 42,847.20

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Solution

The fourth proportional to 50,711.52, 75,701.40 and 42,847.20 is: 63,961.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,711.52 : 75,701.40 = 42,847.20 : x
  2. Step 2: Convert to fraction form
    50,711.52/75,701.40 = 42,847.20/x
  3. Step 3: Cross multiply
    50,711.52x = 75,701.40 × 42,847.20
  4. Step 4: Simplify right side
    50,711.52x = 3,243,593,026.08
  5. Step 5: Solve for x
    x = 3,243,593,026.08/50,711.52
  6. Step 6: Final answer
    x = 63,961.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.