Home / 91,315.22-136,963.04-43,272.23

Finding the Fourth Proportional to 91,315.22, 136,963.04 and 43,272.23

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Solution

The fourth proportional to 91,315.22, 136,963.04 and 43,272.23 is: 64,903.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,315.22 : 136,963.04 = 43,272.23 : x
  2. Step 2: Convert to fraction form
    91,315.22/136,963.04 = 43,272.23/x
  3. Step 3: Cross multiply
    91,315.22x = 136,963.04 × 43,272.23
  4. Step 4: Simplify right side
    91,315.22x = 5,926,695,267.20
  5. Step 5: Solve for x
    x = 5,926,695,267.20/91,315.22
  6. Step 6: Final answer
    x = 64,903.70

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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.