Home / 78,932.47-108,928.95-47,119.84

Finding the Fourth Proportional to 78,932.47, 108,928.95 and 47,119.84

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Solution

The fourth proportional to 78,932.47, 108,928.95 and 47,119.84 is: 65,026.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,932.47 : 108,928.95 = 47,119.84 : x
  2. Step 2: Convert to fraction form
    78,932.47/108,928.95 = 47,119.84/x
  3. Step 3: Cross multiply
    78,932.47x = 108,928.95 × 47,119.84
  4. Step 4: Simplify right side
    78,932.47x = 5,132,714,695.37
  5. Step 5: Solve for x
    x = 5,132,714,695.37/78,932.47
  6. Step 6: Final answer
    x = 65,026.66

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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.