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Finding the Fourth Proportional to 67,367.40, 101,134.30 and 42,407.40

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Solution

The fourth proportional to 67,367.40, 101,134.30 and 42,407.40 is: 63,663.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,367.40 : 101,134.30 = 42,407.40 : x
  2. Step 2: Convert to fraction form
    67,367.40/101,134.30 = 42,407.40/x
  3. Step 3: Cross multiply
    67,367.40x = 101,134.30 × 42,407.40
  4. Step 4: Simplify right side
    67,367.40x = 4,288,842,713.82
  5. Step 5: Solve for x
    x = 4,288,842,713.82/67,367.40
  6. Step 6: Final answer
    x = 63,663.47

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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.