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Finding the Fourth Proportional to 88,126.92, 121,614.87 and 47,840.40

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Solution

The fourth proportional to 88,126.92, 121,614.87 and 47,840.40 is: 66,019.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,126.92 : 121,614.87 = 47,840.40 : x
  2. Step 2: Convert to fraction form
    88,126.92/121,614.87 = 47,840.40/x
  3. Step 3: Cross multiply
    88,126.92x = 121,614.87 × 47,840.40
  4. Step 4: Simplify right side
    88,126.92x = 5,818,104,026.75
  5. Step 5: Solve for x
    x = 5,818,104,026.75/88,126.92
  6. Step 6: Final answer
    x = 66,019.60

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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.