Home / 77,312.16-115,995.84-47,695.56

Finding the Fourth Proportional to 77,312.16, 115,995.84 and 47,695.56

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Solution

The fourth proportional to 77,312.16, 115,995.84 and 47,695.56 is: 71,560.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,312.16 : 115,995.84 = 47,695.56 : x
  2. Step 2: Convert to fraction form
    77,312.16/115,995.84 = 47,695.56/x
  3. Step 3: Cross multiply
    77,312.16x = 115,995.84 × 47,695.56
  4. Step 4: Simplify right side
    77,312.16x = 5,532,486,546.47
  5. Step 5: Solve for x
    x = 5,532,486,546.47/77,312.16
  6. Step 6: Final answer
    x = 71,560.37

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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.