Home / 98,760.33-136,288.88-53,438.40

Finding the Fourth Proportional to 98,760.33, 136,288.88 and 53,438.40

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Solution

The fourth proportional to 98,760.33, 136,288.88 and 53,438.40 is: 73,744.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,760.33 : 136,288.88 = 53,438.40 : x
  2. Step 2: Convert to fraction form
    98,760.33/136,288.88 = 53,438.40/x
  3. Step 3: Cross multiply
    98,760.33x = 136,288.88 × 53,438.40
  4. Step 4: Simplify right side
    98,760.33x = 7,283,059,618.19
  5. Step 5: Solve for x
    x = 7,283,059,618.19/98,760.33
  6. Step 6: Final answer
    x = 73,744.79

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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.