Home / 98,761.29-136,289.60-53,438.28

Finding the Fourth Proportional to 98,761.29, 136,289.60 and 53,438.28

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Solution

The fourth proportional to 98,761.29, 136,289.60 and 53,438.28 is: 73,744.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,761.29 : 136,289.60 = 53,438.28 : x
  2. Step 2: Convert to fraction form
    98,761.29/136,289.60 = 53,438.28/x
  3. Step 3: Cross multiply
    98,761.29x = 136,289.60 × 53,438.28
  4. Step 4: Simplify right side
    98,761.29x = 7,283,081,538.70
  5. Step 5: Solve for x
    x = 7,283,081,538.70/98,761.29
  6. Step 6: Final answer
    x = 73,744.29

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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.