Home / 42,662.40-64,003.20-25,123.20

Finding the Fourth Proportional to 42,662.40, 64,003.20 and 25,123.20

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Solution

The fourth proportional to 42,662.40, 64,003.20 and 25,123.20 is: 37,690.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,662.40 : 64,003.20 = 25,123.20 : x
  2. Step 2: Convert to fraction form
    42,662.40/64,003.20 = 25,123.20/x
  3. Step 3: Cross multiply
    42,662.40x = 64,003.20 × 25,123.20
  4. Step 4: Simplify right side
    42,662.40x = 1,607,965,194.24
  5. Step 5: Solve for x
    x = 1,607,965,194.24/42,662.40
  6. Step 6: Final answer
    x = 37,690.45

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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.