Home / 88,215.04-121,787.21-58,087.90

Finding the Fourth Proportional to 88,215.04, 121,787.21 and 58,087.90

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Solution

The fourth proportional to 88,215.04, 121,787.21 and 58,087.90 is: 80,194.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,215.04 : 121,787.21 = 58,087.90 : x
  2. Step 2: Convert to fraction form
    88,215.04/121,787.21 = 58,087.90/x
  3. Step 3: Cross multiply
    88,215.04x = 121,787.21 × 58,087.90
  4. Step 4: Simplify right side
    88,215.04x = 7,074,363,573.21
  5. Step 5: Solve for x
    x = 7,074,363,573.21/88,215.04
  6. Step 6: Final answer
    x = 80,194.53

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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.