Home / 42,665.40-64,007.70-25,126.20

Finding the Fourth Proportional to 42,665.40, 64,007.70 and 25,126.20

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Solution

The fourth proportional to 42,665.40, 64,007.70 and 25,126.20 is: 37,694.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,665.40 : 64,007.70 = 25,126.20 : x
  2. Step 2: Convert to fraction form
    42,665.40/64,007.70 = 25,126.20/x
  3. Step 3: Cross multiply
    42,665.40x = 64,007.70 × 25,126.20
  4. Step 4: Simplify right side
    42,665.40x = 1,608,270,271.74
  5. Step 5: Solve for x
    x = 1,608,270,271.74/42,665.40
  6. Step 6: Final answer
    x = 37,694.95

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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.