Home / 62,642.56-86,427.52-38,760.80

Finding the Fourth Proportional to 62,642.56, 86,427.52 and 38,760.80

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Solution

The fourth proportional to 62,642.56, 86,427.52 and 38,760.80 is: 53,478.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,642.56 : 86,427.52 = 38,760.80 : x
  2. Step 2: Convert to fraction form
    62,642.56/86,427.52 = 38,760.80/x
  3. Step 3: Cross multiply
    62,642.56x = 86,427.52 × 38,760.80
  4. Step 4: Simplify right side
    62,642.56x = 3,349,999,817.22
  5. Step 5: Solve for x
    x = 3,349,999,817.22/62,642.56
  6. Step 6: Final answer
    x = 53,478.02

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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.