Home / 80,751.12-121,152.14-38,054.82

Finding the Fourth Proportional to 80,751.12, 121,152.14 and 38,054.82

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Solution

The fourth proportional to 80,751.12, 121,152.14 and 38,054.82 is: 57,094.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,751.12 : 121,152.14 = 38,054.82 : x
  2. Step 2: Convert to fraction form
    80,751.12/121,152.14 = 38,054.82/x
  3. Step 3: Cross multiply
    80,751.12x = 121,152.14 × 38,054.82
  4. Step 4: Simplify right side
    80,751.12x = 4,610,423,287.07
  5. Step 5: Solve for x
    x = 4,610,423,287.07/80,751.12
  6. Step 6: Final answer
    x = 57,094.23

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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.