Home / 79,117.32-109,132.74-48,911.88

Finding the Fourth Proportional to 79,117.32, 109,132.74 and 48,911.88

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Solution

The fourth proportional to 79,117.32, 109,132.74 and 48,911.88 is: 67,468.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,117.32 : 109,132.74 = 48,911.88 : x
  2. Step 2: Convert to fraction form
    79,117.32/109,132.74 = 48,911.88/x
  3. Step 3: Cross multiply
    79,117.32x = 109,132.74 × 48,911.88
  4. Step 4: Simplify right side
    79,117.32x = 5,337,887,482.95
  5. Step 5: Solve for x
    x = 5,337,887,482.95/79,117.32
  6. Step 6: Final answer
    x = 67,468.00

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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.