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Finding the Fourth Proportional to 85,937.41, 118,600.77 and 47,700.55

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Solution

The fourth proportional to 85,937.41, 118,600.77 and 47,700.55 is: 65,830.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,937.41 : 118,600.77 = 47,700.55 : x
  2. Step 2: Convert to fraction form
    85,937.41/118,600.77 = 47,700.55/x
  3. Step 3: Cross multiply
    85,937.41x = 118,600.77 × 47,700.55
  4. Step 4: Simplify right side
    85,937.41x = 5,657,321,959.42
  5. Step 5: Solve for x
    x = 5,657,321,959.42/85,937.41
  6. Step 6: Final answer
    x = 65,830.72

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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.