Home / 98,331.72-135,698.28-55,890.24

Finding the Fourth Proportional to 98,331.72, 135,698.28 and 55,890.24

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Solution

The fourth proportional to 98,331.72, 135,698.28 and 55,890.24 is: 77,128.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,331.72 : 135,698.28 = 55,890.24 : x
  2. Step 2: Convert to fraction form
    98,331.72/135,698.28 = 55,890.24/x
  3. Step 3: Cross multiply
    98,331.72x = 135,698.28 × 55,890.24
  4. Step 4: Simplify right side
    98,331.72x = 7,584,209,436.79
  5. Step 5: Solve for x
    x = 7,584,209,436.79/98,331.72
  6. Step 6: Final answer
    x = 77,128.82

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1.5x scale

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.