Home / 66,738.95-92,090.84-38,439.17

Finding the Fourth Proportional to 66,738.95, 92,090.84 and 38,439.17

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Solution

The fourth proportional to 66,738.95, 92,090.84 and 38,439.17 is: 53,040.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,738.95 : 92,090.84 = 38,439.17 : x
  2. Step 2: Convert to fraction form
    66,738.95/92,090.84 = 38,439.17/x
  3. Step 3: Cross multiply
    66,738.95x = 92,090.84 × 38,439.17
  4. Step 4: Simplify right side
    66,738.95x = 3,539,895,454.20
  5. Step 5: Solve for x
    x = 3,539,895,454.20/66,738.95
  6. Step 6: Final answer
    x = 53,040.92

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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.