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Finding the Fourth Proportional to 70,659.52, 97,510.80 and 38,829.12

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Solution

The fourth proportional to 70,659.52, 97,510.80 and 38,829.12 is: 53,584.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,659.52 : 97,510.80 = 38,829.12 : x
  2. Step 2: Convert to fraction form
    70,659.52/97,510.80 = 38,829.12/x
  3. Step 3: Cross multiply
    70,659.52x = 97,510.80 × 38,829.12
  4. Step 4: Simplify right side
    70,659.52x = 3,786,258,554.50
  5. Step 5: Solve for x
    x = 3,786,258,554.50/70,659.52
  6. Step 6: Final answer
    x = 53,584.55

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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.