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Finding the Fourth Proportional to 60,116.80, 90,002.40 and 36,788.80

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Solution

The fourth proportional to 60,116.80, 90,002.40 and 36,788.80 is: 55,077.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,116.80 : 90,002.40 = 36,788.80 : x
  2. Step 2: Convert to fraction form
    60,116.80/90,002.40 = 36,788.80/x
  3. Step 3: Cross multiply
    60,116.80x = 90,002.40 × 36,788.80
  4. Step 4: Simplify right side
    60,116.80x = 3,311,080,293.12
  5. Step 5: Solve for x
    x = 3,311,080,293.12/60,116.80
  6. Step 6: Final answer
    x = 55,077.45

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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.