Home / 98,437.88-135,842.38-53,726.20

Finding the Fourth Proportional to 98,437.88, 135,842.38 and 53,726.20

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Solution

The fourth proportional to 98,437.88, 135,842.38 and 53,726.20 is: 74,141.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,437.88 : 135,842.38 = 53,726.20 : x
  2. Step 2: Convert to fraction form
    98,437.88/135,842.38 = 53,726.20/x
  3. Step 3: Cross multiply
    98,437.88x = 135,842.38 × 53,726.20
  4. Step 4: Simplify right side
    98,437.88x = 7,298,294,876.36
  5. Step 5: Solve for x
    x = 7,298,294,876.36/98,437.88
  6. Step 6: Final answer
    x = 74,141.12

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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.