Home / 42,354.78-63,447.46-25,478.48

Finding the Fourth Proportional to 42,354.78, 63,447.46 and 25,478.48

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Solution

The fourth proportional to 42,354.78, 63,447.46 and 25,478.48 is: 38,166.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,354.78 : 63,447.46 = 25,478.48 : x
  2. Step 2: Convert to fraction form
    42,354.78/63,447.46 = 25,478.48/x
  3. Step 3: Cross multiply
    42,354.78x = 63,447.46 × 25,478.48
  4. Step 4: Simplify right side
    42,354.78x = 1,616,544,935.58
  5. Step 5: Solve for x
    x = 1,616,544,935.58/42,354.78
  6. Step 6: Final answer
    x = 38,166.77

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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.