Home / 99,875.49-137,832.26-57,434.02

Finding the Fourth Proportional to 99,875.49, 137,832.26 and 57,434.02

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Solution

The fourth proportional to 99,875.49, 137,832.26 and 57,434.02 is: 79,261.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,875.49 : 137,832.26 = 57,434.02 : x
  2. Step 2: Convert to fraction form
    99,875.49/137,832.26 = 57,434.02/x
  3. Step 3: Cross multiply
    99,875.49x = 137,832.26 × 57,434.02
  4. Step 4: Simplify right side
    99,875.49x = 7,916,260,777.49
  5. Step 5: Solve for x
    x = 7,916,260,777.49/99,875.49
  6. Step 6: Final answer
    x = 79,261.30

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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.