Home / 66,715.02-92,078.10-38,437.11

Finding the Fourth Proportional to 66,715.02, 92,078.10 and 38,437.11

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Solution

The fourth proportional to 66,715.02, 92,078.10 and 38,437.11 is: 53,049.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,715.02 : 92,078.10 = 38,437.11 : x
  2. Step 2: Convert to fraction form
    66,715.02/92,078.10 = 38,437.11/x
  3. Step 3: Cross multiply
    66,715.02x = 92,078.10 × 38,437.11
  4. Step 4: Simplify right side
    66,715.02x = 3,539,216,058.29
  5. Step 5: Solve for x
    x = 3,539,216,058.29/66,715.02
  6. Step 6: Final answer
    x = 53,049.76

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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.