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Finding the Fourth Proportional to 83,652.78, 115,439.40 and 45,926.76

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Solution

The fourth proportional to 83,652.78, 115,439.40 and 45,926.76 is: 63,378.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,652.78 : 115,439.40 = 45,926.76 : x
  2. Step 2: Convert to fraction form
    83,652.78/115,439.40 = 45,926.76/x
  3. Step 3: Cross multiply
    83,652.78x = 115,439.40 × 45,926.76
  4. Step 4: Simplify right side
    83,652.78x = 5,301,757,618.34
  5. Step 5: Solve for x
    x = 5,301,757,618.34/83,652.78
  6. Step 6: Final answer
    x = 63,378.14

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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.