Home / 99,566.34-137,400.48-57,131.52

Finding the Fourth Proportional to 99,566.34, 137,400.48 and 57,131.52

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Solution

The fourth proportional to 99,566.34, 137,400.48 and 57,131.52 is: 78,840.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,566.34 : 137,400.48 = 57,131.52 : x
  2. Step 2: Convert to fraction form
    99,566.34/137,400.48 = 57,131.52/x
  3. Step 3: Cross multiply
    99,566.34x = 137,400.48 × 57,131.52
  4. Step 4: Simplify right side
    99,566.34x = 7,849,898,271.13
  5. Step 5: Solve for x
    x = 7,849,898,271.13/99,566.34
  6. Step 6: Final answer
    x = 78,840.88

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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.