Home / 85,713.60-118,172.34-58,809.45

Finding the Fourth Proportional to 85,713.60, 118,172.34 and 58,809.45

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Solution

The fourth proportional to 85,713.60, 118,172.34 and 58,809.45 is: 81,079.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,713.60 : 118,172.34 = 58,809.45 : x
  2. Step 2: Convert to fraction form
    85,713.60/118,172.34 = 58,809.45/x
  3. Step 3: Cross multiply
    85,713.60x = 118,172.34 × 58,809.45
  4. Step 4: Simplify right side
    85,713.60x = 6,949,650,320.61
  5. Step 5: Solve for x
    x = 6,949,650,320.61/85,713.60
  6. Step 6: Final answer
    x = 81,079.90

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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.