Home / 65,430.18-90,289.62-36,753.75

Finding the Fourth Proportional to 65,430.18, 90,289.62 and 36,753.75

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Solution

The fourth proportional to 65,430.18, 90,289.62 and 36,753.75 is: 50,717.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,430.18 : 90,289.62 = 36,753.75 : x
  2. Step 2: Convert to fraction form
    65,430.18/90,289.62 = 36,753.75/x
  3. Step 3: Cross multiply
    65,430.18x = 90,289.62 × 36,753.75
  4. Step 4: Simplify right side
    65,430.18x = 3,318,482,121.08
  5. Step 5: Solve for x
    x = 3,318,482,121.08/65,430.18
  6. Step 6: Final answer
    x = 50,717.91

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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.