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Finding the Fourth Proportional to 57,074.40, 85,681.80 and 36,014.40

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Solution

The fourth proportional to 57,074.40, 85,681.80 and 36,014.40 is: 54,065.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,074.40 : 85,681.80 = 36,014.40 : x
  2. Step 2: Convert to fraction form
    57,074.40/85,681.80 = 36,014.40/x
  3. Step 3: Cross multiply
    57,074.40x = 85,681.80 × 36,014.40
  4. Step 4: Simplify right side
    57,074.40x = 3,085,778,617.92
  5. Step 5: Solve for x
    x = 3,085,778,617.92/57,074.40
  6. Step 6: Final answer
    x = 54,065.90

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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.