Home / 85,110.02-117,444.57-47,387.78

Finding the Fourth Proportional to 85,110.02, 117,444.57 and 47,387.78

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Solution

The fourth proportional to 85,110.02, 117,444.57 and 47,387.78 is: 65,391.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,110.02 : 117,444.57 = 47,387.78 : x
  2. Step 2: Convert to fraction form
    85,110.02/117,444.57 = 47,387.78/x
  3. Step 3: Cross multiply
    85,110.02x = 117,444.57 × 47,387.78
  4. Step 4: Simplify right side
    85,110.02x = 5,565,437,445.35
  5. Step 5: Solve for x
    x = 5,565,437,445.35/85,110.02
  6. Step 6: Final answer
    x = 65,391.10

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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.