Home / 77,035.20-115,552.80-37,617.60

Finding the Fourth Proportional to 77,035.20, 115,552.80 and 37,617.60

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Solution

The fourth proportional to 77,035.20, 115,552.80 and 37,617.60 is: 56,426.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,035.20 : 115,552.80 = 37,617.60 : x
  2. Step 2: Convert to fraction form
    77,035.20/115,552.80 = 37,617.60/x
  3. Step 3: Cross multiply
    77,035.20x = 115,552.80 × 37,617.60
  4. Step 4: Simplify right side
    77,035.20x = 4,346,819,009.28
  5. Step 5: Solve for x
    x = 4,346,819,009.28/77,035.20
  6. Step 6: Final answer
    x = 56,426.40

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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.