Home / 98,781.76-136,313.60-54,061.12

Finding the Fourth Proportional to 98,781.76, 136,313.60 and 54,061.12

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Solution

The fourth proportional to 98,781.76, 136,313.60 and 54,061.12 is: 74,601.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,781.76 : 136,313.60 = 54,061.12 : x
  2. Step 2: Convert to fraction form
    98,781.76/136,313.60 = 54,061.12/x
  3. Step 3: Cross multiply
    98,781.76x = 136,313.60 × 54,061.12
  4. Step 4: Simplify right side
    98,781.76x = 7,369,265,887.23
  5. Step 5: Solve for x
    x = 7,369,265,887.23/98,781.76
  6. Step 6: Final answer
    x = 74,601.48

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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.