Home / 77,161.28-115,686.34-35,020.22

Finding the Fourth Proportional to 77,161.28, 115,686.34 and 35,020.22

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Solution

The fourth proportional to 77,161.28, 115,686.34 and 35,020.22 is: 52,505.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,161.28 : 115,686.34 = 35,020.22 : x
  2. Step 2: Convert to fraction form
    77,161.28/115,686.34 = 35,020.22/x
  3. Step 3: Cross multiply
    77,161.28x = 115,686.34 × 35,020.22
  4. Step 4: Simplify right side
    77,161.28x = 4,051,360,411.81
  5. Step 5: Solve for x
    x = 4,051,360,411.81/77,161.28
  6. Step 6: Final answer
    x = 52,505.10

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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.