Home / 77,426.97-115,943.64-70,931.58

Finding the Fourth Proportional to 77,426.97, 115,943.64 and 70,931.58

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Solution

The fourth proportional to 77,426.97, 115,943.64 and 70,931.58 is: 106,217.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,426.97 : 115,943.64 = 70,931.58 : x
  2. Step 2: Convert to fraction form
    77,426.97/115,943.64 = 70,931.58/x
  3. Step 3: Cross multiply
    77,426.97x = 115,943.64 × 70,931.58
  4. Step 4: Simplify right side
    77,426.97x = 8,224,065,576.15
  5. Step 5: Solve for x
    x = 8,224,065,576.15/77,426.97
  6. Step 6: Final answer
    x = 106,217.07

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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.