Home / 45,760.06-63,136.38-31,424.20

Finding the Fourth Proportional to 45,760.06, 63,136.38 and 31,424.20

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Solution

The fourth proportional to 45,760.06, 63,136.38 and 31,424.20 is: 43,356.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,760.06 : 63,136.38 = 31,424.20 : x
  2. Step 2: Convert to fraction form
    45,760.06/63,136.38 = 31,424.20/x
  3. Step 3: Cross multiply
    45,760.06x = 63,136.38 × 31,424.20
  4. Step 4: Simplify right side
    45,760.06x = 1,984,010,232.40
  5. Step 5: Solve for x
    x = 1,984,010,232.40/45,760.06
  6. Step 6: Final answer
    x = 43,356.81

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1.5x scale

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.