Home / 89,909.99-124,079.83-51,681.95

Finding the Fourth Proportional to 89,909.99, 124,079.83 and 51,681.95

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Solution

The fourth proportional to 89,909.99, 124,079.83 and 51,681.95 is: 71,323.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,909.99 : 124,079.83 = 51,681.95 : x
  2. Step 2: Convert to fraction form
    89,909.99/124,079.83 = 51,681.95/x
  3. Step 3: Cross multiply
    89,909.99x = 124,079.83 × 51,681.95
  4. Step 4: Simplify right side
    89,909.99x = 6,412,686,820.46
  5. Step 5: Solve for x
    x = 6,412,686,820.46/89,909.99
  6. Step 6: Final answer
    x = 71,323.41

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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.