Home / 66,985.28-92,420.76-43,125.76

Finding the Fourth Proportional to 66,985.28, 92,420.76 and 43,125.76

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Solution

The fourth proportional to 66,985.28, 92,420.76 and 43,125.76 is: 59,501.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,985.28 : 92,420.76 = 43,125.76 : x
  2. Step 2: Convert to fraction form
    66,985.28/92,420.76 = 43,125.76/x
  3. Step 3: Cross multiply
    66,985.28x = 92,420.76 × 43,125.76
  4. Step 4: Simplify right side
    66,985.28x = 3,985,715,514.78
  5. Step 5: Solve for x
    x = 3,985,715,514.78/66,985.28
  6. Step 6: Final answer
    x = 59,501.36

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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.