Home / 99,575.08-137,412.36-54,255

Finding the Fourth Proportional to 99,575.08, 137,412.36 and 54,255

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Solution

The fourth proportional to 99,575.08, 137,412.36 and 54,255 is: 74,871.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,575.08 : 137,412.36 = 54,255 : x
  2. Step 2: Convert to fraction form
    99,575.08/137,412.36 = 54,255/x
  3. Step 3: Cross multiply
    99,575.08x = 137,412.36 × 54,255
  4. Step 4: Simplify right side
    99,575.08x = 7,455,307,591.80
  5. Step 5: Solve for x
    x = 7,455,307,591.80/99,575.08
  6. Step 6: Final answer
    x = 74,871.22

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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.