Home / 79,530.66-109,708.89-48,887.10

Finding the Fourth Proportional to 79,530.66, 109,708.89 and 48,887.10

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Solution

The fourth proportional to 79,530.66, 109,708.89 and 48,887.10 is: 67,437.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,530.66 : 109,708.89 = 48,887.10 : x
  2. Step 2: Convert to fraction form
    79,530.66/109,708.89 = 48,887.10/x
  3. Step 3: Cross multiply
    79,530.66x = 109,708.89 × 48,887.10
  4. Step 4: Simplify right side
    79,530.66x = 5,363,349,476.32
  5. Step 5: Solve for x
    x = 5,363,349,476.32/79,530.66
  6. Step 6: Final answer
    x = 67,437.51

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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.