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Finding the Fourth Proportional to 85,983.95, 118,657.85 and 48,258.20

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Solution

The fourth proportional to 85,983.95, 118,657.85 and 48,258.20 is: 66,596.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,983.95 : 118,657.85 = 48,258.20 : x
  2. Step 2: Convert to fraction form
    85,983.95/118,657.85 = 48,258.20/x
  3. Step 3: Cross multiply
    85,983.95x = 118,657.85 × 48,258.20
  4. Step 4: Simplify right side
    85,983.95x = 5,726,214,171.71
  5. Step 5: Solve for x
    x = 5,726,214,171.71/85,983.95
  6. Step 6: Final answer
    x = 66,596.32

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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.