Home / 77,019.20-115,528.80-37,601.60

Finding the Fourth Proportional to 77,019.20, 115,528.80 and 37,601.60

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Solution

The fourth proportional to 77,019.20, 115,528.80 and 37,601.60 is: 56,402.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,019.20 : 115,528.80 = 37,601.60 : x
  2. Step 2: Convert to fraction form
    77,019.20/115,528.80 = 37,601.60/x
  3. Step 3: Cross multiply
    77,019.20x = 115,528.80 × 37,601.60
  4. Step 4: Simplify right side
    77,019.20x = 4,344,067,726.08
  5. Step 5: Solve for x
    x = 4,344,067,726.08/77,019.20
  6. Step 6: Final answer
    x = 56,402.40

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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.