Home / 91,430.76-137,136.06-29,106.12

Finding the Fourth Proportional to 91,430.76, 137,136.06 and 29,106.12

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Solution

The fourth proportional to 91,430.76, 137,136.06 and 29,106.12 is: 43,655.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,430.76 : 137,136.06 = 29,106.12 : x
  2. Step 2: Convert to fraction form
    91,430.76/137,136.06 = 29,106.12/x
  3. Step 3: Cross multiply
    91,430.76x = 137,136.06 × 29,106.12
  4. Step 4: Simplify right side
    91,430.76x = 3,991,498,618.69
  5. Step 5: Solve for x
    x = 3,991,498,618.69/91,430.76
  6. Step 6: Final answer
    x = 43,655.97

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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.