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Finding the Fourth Proportional to 65,875.55, 98,829.07 and 21,502.39

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Solution

The fourth proportional to 65,875.55, 98,829.07 and 21,502.39 is: 32,258.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,875.55 : 98,829.07 = 21,502.39 : x
  2. Step 2: Convert to fraction form
    65,875.55/98,829.07 = 21,502.39/x
  3. Step 3: Cross multiply
    65,875.55x = 98,829.07 × 21,502.39
  4. Step 4: Simplify right side
    65,875.55x = 2,125,061,206.48
  5. Step 5: Solve for x
    x = 2,125,061,206.48/65,875.55
  6. Step 6: Final answer
    x = 32,258.72

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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.