Home / 72,576.49-100,138.02-42,344.56

Finding the Fourth Proportional to 72,576.49, 100,138.02 and 42,344.56

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Solution

The fourth proportional to 72,576.49, 100,138.02 and 42,344.56 is: 58,425.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,576.49 : 100,138.02 = 42,344.56 : x
  2. Step 2: Convert to fraction form
    72,576.49/100,138.02 = 42,344.56/x
  3. Step 3: Cross multiply
    72,576.49x = 100,138.02 × 42,344.56
  4. Step 4: Simplify right side
    72,576.49x = 4,240,300,396.17
  5. Step 5: Solve for x
    x = 4,240,300,396.17/72,576.49
  6. Step 6: Final answer
    x = 58,425.26

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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.