Home / 98,132.40-135,436.32-57,857.58

Finding the Fourth Proportional to 98,132.40, 135,436.32 and 57,857.58

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Solution

The fourth proportional to 98,132.40, 135,436.32 and 57,857.58 is: 79,851.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,132.40 : 135,436.32 = 57,857.58 : x
  2. Step 2: Convert to fraction form
    98,132.40/135,436.32 = 57,857.58/x
  3. Step 3: Cross multiply
    98,132.40x = 135,436.32 × 57,857.58
  4. Step 4: Simplify right side
    98,132.40x = 7,836,017,719.31
  5. Step 5: Solve for x
    x = 7,836,017,719.31/98,132.40
  6. Step 6: Final answer
    x = 79,851.48

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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.