Home / 80,774.20-121,307.10-58,612.60

Finding the Fourth Proportional to 80,774.20, 121,307.10 and 58,612.60

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Solution

The fourth proportional to 80,774.20, 121,307.10 and 58,612.60 is: 88,024.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,774.20 : 121,307.10 = 58,612.60 : x
  2. Step 2: Convert to fraction form
    80,774.20/121,307.10 = 58,612.60/x
  3. Step 3: Cross multiply
    80,774.20x = 121,307.10 × 58,612.60
  4. Step 4: Simplify right side
    80,774.20x = 7,110,124,529.46
  5. Step 5: Solve for x
    x = 7,110,124,529.46/80,774.20
  6. Step 6: Final answer
    x = 88,024.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.