Home / 90,727.35-125,210.75-54,430.16

Finding the Fourth Proportional to 90,727.35, 125,210.75 and 54,430.16

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Solution

The fourth proportional to 90,727.35, 125,210.75 and 54,430.16 is: 75,117.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,727.35 : 125,210.75 = 54,430.16 : x
  2. Step 2: Convert to fraction form
    90,727.35/125,210.75 = 54,430.16/x
  3. Step 3: Cross multiply
    90,727.35x = 125,210.75 × 54,430.16
  4. Step 4: Simplify right side
    90,727.35x = 6,815,241,135.78
  5. Step 5: Solve for x
    x = 6,815,241,135.78/90,727.35
  6. Step 6: Final answer
    x = 75,117.82

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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.