Home / 70,962.16-97,928.40-39,132.16

Finding the Fourth Proportional to 70,962.16, 97,928.40 and 39,132.16

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Solution

The fourth proportional to 70,962.16, 97,928.40 and 39,132.16 is: 54,002.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,962.16 : 97,928.40 = 39,132.16 : x
  2. Step 2: Convert to fraction form
    70,962.16/97,928.40 = 39,132.16/x
  3. Step 3: Cross multiply
    70,962.16x = 97,928.40 × 39,132.16
  4. Step 4: Simplify right side
    70,962.16x = 3,832,149,817.34
  5. Step 5: Solve for x
    x = 3,832,149,817.34/70,962.16
  6. Step 6: Final answer
    x = 54,002.72

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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.