Home / 51,543.81-71,136.36-28,888.92

Finding the Fourth Proportional to 51,543.81, 71,136.36 and 28,888.92

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Solution

The fourth proportional to 51,543.81, 71,136.36 and 28,888.92 is: 39,870.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,543.81 : 71,136.36 = 28,888.92 : x
  2. Step 2: Convert to fraction form
    51,543.81/71,136.36 = 28,888.92/x
  3. Step 3: Cross multiply
    51,543.81x = 71,136.36 × 28,888.92
  4. Step 4: Simplify right side
    51,543.81x = 2,055,052,613.13
  5. Step 5: Solve for x
    x = 2,055,052,613.13/51,543.81
  6. Step 6: Final answer
    x = 39,870.02

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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.