Home / 99,573.28-137,399.02-56,537.08

Finding the Fourth Proportional to 99,573.28, 137,399.02 and 56,537.08

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Solution

The fourth proportional to 99,573.28, 137,399.02 and 56,537.08 is: 78,014.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,573.28 : 137,399.02 = 56,537.08 : x
  2. Step 2: Convert to fraction form
    99,573.28/137,399.02 = 56,537.08/x
  3. Step 3: Cross multiply
    99,573.28x = 137,399.02 × 56,537.08
  4. Step 4: Simplify right side
    99,573.28x = 7,768,139,385.66
  5. Step 5: Solve for x
    x = 7,768,139,385.66/99,573.28
  6. Step 6: Final answer
    x = 78,014.30

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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.