Home / 66,670.96-92,029.10-38,387.92

Finding the Fourth Proportional to 66,670.96, 92,029.10 and 38,387.92

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Solution

The fourth proportional to 66,670.96, 92,029.10 and 38,387.92 is: 52,988.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,670.96 : 92,029.10 = 38,387.92 : x
  2. Step 2: Convert to fraction form
    66,670.96/92,029.10 = 38,387.92/x
  3. Step 3: Cross multiply
    66,670.96x = 92,029.10 × 38,387.92
  4. Step 4: Simplify right side
    66,670.96x = 3,532,805,728.47
  5. Step 5: Solve for x
    x = 3,532,805,728.47/66,670.96
  6. Step 6: Final answer
    x = 52,988.67

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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.