Home / 48,378.81-72,549.58-18,792.75

Finding the Fourth Proportional to 48,378.81, 72,549.58 and 18,792.75

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Solution

The fourth proportional to 48,378.81, 72,549.58 and 18,792.75 is: 28,181.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,378.81 : 72,549.58 = 18,792.75 : x
  2. Step 2: Convert to fraction form
    48,378.81/72,549.58 = 18,792.75/x
  3. Step 3: Cross multiply
    48,378.81x = 72,549.58 × 18,792.75
  4. Step 4: Simplify right side
    48,378.81x = 1,363,406,119.55
  5. Step 5: Solve for x
    x = 1,363,406,119.55/48,378.81
  6. Step 6: Final answer
    x = 28,181.89

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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.