Home / 91,587.92-126,402.54-55,783.13

Finding the Fourth Proportional to 91,587.92, 126,402.54 and 55,783.13

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Solution

The fourth proportional to 91,587.92, 126,402.54 and 55,783.13 is: 76,987.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,587.92 : 126,402.54 = 55,783.13 : x
  2. Step 2: Convert to fraction form
    91,587.92/126,402.54 = 55,783.13/x
  3. Step 3: Cross multiply
    91,587.92x = 126,402.54 × 55,783.13
  4. Step 4: Simplify right side
    91,587.92x = 7,051,129,321.15
  5. Step 5: Solve for x
    x = 7,051,129,321.15/91,587.92
  6. Step 6: Final answer
    x = 76,987.55

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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.