Home / 77,025.20-115,537.80-63,892.40

Finding the Fourth Proportional to 77,025.20, 115,537.80 and 63,892.40

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Solution

The fourth proportional to 77,025.20, 115,537.80 and 63,892.40 is: 95,838.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,025.20 : 115,537.80 = 63,892.40 : x
  2. Step 2: Convert to fraction form
    77,025.20/115,537.80 = 63,892.40/x
  3. Step 3: Cross multiply
    77,025.20x = 115,537.80 × 63,892.40
  4. Step 4: Simplify right side
    77,025.20x = 7,381,987,332.72
  5. Step 5: Solve for x
    x = 7,381,987,332.72/77,025.20
  6. Step 6: Final answer
    x = 95,838.60

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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.