Home / 98,228.16-135,555.12-55,800.72

Finding the Fourth Proportional to 98,228.16, 135,555.12 and 55,800.72

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Solution

The fourth proportional to 98,228.16, 135,555.12 and 55,800.72 is: 77,005.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,228.16 : 135,555.12 = 55,800.72 : x
  2. Step 2: Convert to fraction form
    98,228.16/135,555.12 = 55,800.72/x
  3. Step 3: Cross multiply
    98,228.16x = 135,555.12 × 55,800.72
  4. Step 4: Simplify right side
    98,228.16x = 7,564,073,295.69
  5. Step 5: Solve for x
    x = 7,564,073,295.69/98,228.16
  6. Step 6: Final answer
    x = 77,005.14

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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.