Home / 91,681.07-126,525.92-51,397.47

Finding the Fourth Proportional to 91,681.07, 126,525.92 and 51,397.47

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Solution

The fourth proportional to 91,681.07, 126,525.92 and 51,397.47 is: 70,931.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,681.07 : 126,525.92 = 51,397.47 : x
  2. Step 2: Convert to fraction form
    91,681.07/126,525.92 = 51,397.47/x
  3. Step 3: Cross multiply
    91,681.07x = 126,525.92 × 51,397.47
  4. Step 4: Simplify right side
    91,681.07x = 6,503,111,920.44
  5. Step 5: Solve for x
    x = 6,503,111,920.44/91,681.07
  6. Step 6: Final answer
    x = 70,931.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.