Home / 84,150.48-126,140.40-54,587.16

Finding the Fourth Proportional to 84,150.48, 126,140.40 and 54,587.16

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Solution

The fourth proportional to 84,150.48, 126,140.40 and 54,587.16 is: 81,825.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,150.48 : 126,140.40 = 54,587.16 : x
  2. Step 2: Convert to fraction form
    84,150.48/126,140.40 = 54,587.16/x
  3. Step 3: Cross multiply
    84,150.48x = 126,140.40 × 54,587.16
  4. Step 4: Simplify right side
    84,150.48x = 6,885,646,197.26
  5. Step 5: Solve for x
    x = 6,885,646,197.26/84,150.48
  6. Step 6: Final answer
    x = 81,825.39

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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.