Home / 85,449.04-128,062.08-61,836.12

Finding the Fourth Proportional to 85,449.04, 128,062.08 and 61,836.12

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Solution

The fourth proportional to 85,449.04, 128,062.08 and 61,836.12 is: 92,673.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,449.04 : 128,062.08 = 61,836.12 : x
  2. Step 2: Convert to fraction form
    85,449.04/128,062.08 = 61,836.12/x
  3. Step 3: Cross multiply
    85,449.04x = 128,062.08 × 61,836.12
  4. Step 4: Simplify right side
    85,449.04x = 7,918,862,146.33
  5. Step 5: Solve for x
    x = 7,918,862,146.33/85,449.04
  6. Step 6: Final answer
    x = 92,673.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.