Home / 77,001.20-115,501.80-35,529.20

Finding the Fourth Proportional to 77,001.20, 115,501.80 and 35,529.20

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Solution

The fourth proportional to 77,001.20, 115,501.80 and 35,529.20 is: 53,293.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,001.20 : 115,501.80 = 35,529.20 : x
  2. Step 2: Convert to fraction form
    77,001.20/115,501.80 = 35,529.20/x
  3. Step 3: Cross multiply
    77,001.20x = 115,501.80 × 35,529.20
  4. Step 4: Simplify right side
    77,001.20x = 4,103,686,552.56
  5. Step 5: Solve for x
    x = 4,103,686,552.56/77,001.20
  6. Step 6: Final answer
    x = 53,293.80

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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.