Home / 77,015.40-115,512.30-24,430.20

Finding the Fourth Proportional to 77,015.40, 115,512.30 and 24,430.20

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Solution

The fourth proportional to 77,015.40, 115,512.30 and 24,430.20 is: 36,641.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,015.40 : 115,512.30 = 24,430.20 : x
  2. Step 2: Convert to fraction form
    77,015.40/115,512.30 = 24,430.20/x
  3. Step 3: Cross multiply
    77,015.40x = 115,512.30 × 24,430.20
  4. Step 4: Simplify right side
    77,015.40x = 2,821,988,591.46
  5. Step 5: Solve for x
    x = 2,821,988,591.46/77,015.40
  6. Step 6: Final answer
    x = 36,641.87

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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.