Home / 91,187.72-125,845.38-50,909.40

Finding the Fourth Proportional to 91,187.72, 125,845.38 and 50,909.40

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Solution

The fourth proportional to 91,187.72, 125,845.38 and 50,909.40 is: 70,258.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,187.72 : 125,845.38 = 50,909.40 : x
  2. Step 2: Convert to fraction form
    91,187.72/125,845.38 = 50,909.40/x
  3. Step 3: Cross multiply
    91,187.72x = 125,845.38 × 50,909.40
  4. Step 4: Simplify right side
    91,187.72x = 6,406,712,788.57
  5. Step 5: Solve for x
    x = 6,406,712,788.57/91,187.72
  6. Step 6: Final answer
    x = 70,258.50

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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.