Home / 99,931.02-137,888.44-59,089.47

Finding the Fourth Proportional to 99,931.02, 137,888.44 and 59,089.47

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Solution

The fourth proportional to 99,931.02, 137,888.44 and 59,089.47 is: 81,533.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,931.02 : 137,888.44 = 59,089.47 : x
  2. Step 2: Convert to fraction form
    99,931.02/137,888.44 = 59,089.47/x
  3. Step 3: Cross multiply
    99,931.02x = 137,888.44 × 59,089.47
  4. Step 4: Simplify right side
    99,931.02x = 8,147,754,691.00
  5. Step 5: Solve for x
    x = 8,147,754,691.00/99,931.02
  6. Step 6: Final answer
    x = 81,533.79

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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.