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Finding the Fourth Proportional to 61,979.04, 85,512.08 and 35,117.28

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Solution

The fourth proportional to 61,979.04, 85,512.08 and 35,117.28 is: 48,451.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,979.04 : 85,512.08 = 35,117.28 : x
  2. Step 2: Convert to fraction form
    61,979.04/85,512.08 = 35,117.28/x
  3. Step 3: Cross multiply
    61,979.04x = 85,512.08 × 35,117.28
  4. Step 4: Simplify right side
    61,979.04x = 3,002,951,656.74
  5. Step 5: Solve for x
    x = 3,002,951,656.74/61,979.04
  6. Step 6: Final answer
    x = 48,451.08

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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.