Home / 99,331.32-137,080.14-54,009.24

Finding the Fourth Proportional to 99,331.32, 137,080.14 and 54,009.24

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Solution

The fourth proportional to 99,331.32, 137,080.14 and 54,009.24 is: 74,534.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,331.32 : 137,080.14 = 54,009.24 : x
  2. Step 2: Convert to fraction form
    99,331.32/137,080.14 = 54,009.24/x
  3. Step 3: Cross multiply
    99,331.32x = 137,080.14 × 54,009.24
  4. Step 4: Simplify right side
    99,331.32x = 7,403,594,180.49
  5. Step 5: Solve for x
    x = 7,403,594,180.49/99,331.32
  6. Step 6: Final answer
    x = 74,534.34

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1.5x scale

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.