Home / 89,652.02-123,678.23-57,831.17

Finding the Fourth Proportional to 89,652.02, 123,678.23 and 57,831.17

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Solution

The fourth proportional to 89,652.02, 123,678.23 and 57,831.17 is: 79,780.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,652.02 : 123,678.23 = 57,831.17 : x
  2. Step 2: Convert to fraction form
    89,652.02/123,678.23 = 57,831.17/x
  3. Step 3: Cross multiply
    89,652.02x = 123,678.23 × 57,831.17
  4. Step 4: Simplify right side
    89,652.02x = 7,152,455,836.88
  5. Step 5: Solve for x
    x = 7,152,455,836.88/89,652.02
  6. Step 6: Final answer
    x = 79,780.20

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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.