Home / 70,387.65-97,134.87-38,122.25

Finding the Fourth Proportional to 70,387.65, 97,134.87 and 38,122.25

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Solution

The fourth proportional to 70,387.65, 97,134.87 and 38,122.25 is: 52,608.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,387.65 : 97,134.87 = 38,122.25 : x
  2. Step 2: Convert to fraction form
    70,387.65/97,134.87 = 38,122.25/x
  3. Step 3: Cross multiply
    70,387.65x = 97,134.87 × 38,122.25
  4. Step 4: Simplify right side
    70,387.65x = 3,702,999,312.18
  5. Step 5: Solve for x
    x = 3,702,999,312.18/70,387.65
  6. Step 6: Final answer
    x = 52,608.65

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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.