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Finding the Fourth Proportional to 73,840.70, 101,898.85 and 42,008.91

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Solution

The fourth proportional to 73,840.70, 101,898.85 and 42,008.91 is: 57,971.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,840.70 : 101,898.85 = 42,008.91 : x
  2. Step 2: Convert to fraction form
    73,840.70/101,898.85 = 42,008.91/x
  3. Step 3: Cross multiply
    73,840.70x = 101,898.85 × 42,008.91
  4. Step 4: Simplify right side
    73,840.70x = 4,280,659,618.75
  5. Step 5: Solve for x
    x = 4,280,659,618.75/73,840.70
  6. Step 6: Final answer
    x = 57,971.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.