Home / 70,746.75-97,631.33-38,915.88

Finding the Fourth Proportional to 70,746.75, 97,631.33 and 38,915.88

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Solution

The fourth proportional to 70,746.75, 97,631.33 and 38,915.88 is: 53,704.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,746.75 : 97,631.33 = 38,915.88 : x
  2. Step 2: Convert to fraction form
    70,746.75/97,631.33 = 38,915.88/x
  3. Step 3: Cross multiply
    70,746.75x = 97,631.33 × 38,915.88
  4. Step 4: Simplify right side
    70,746.75x = 3,799,409,122.52
  5. Step 5: Solve for x
    x = 3,799,409,122.52/70,746.75
  6. Step 6: Final answer
    x = 53,704.36

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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.