Home / 42,287.60-63,327.72-28,394.48

Finding the Fourth Proportional to 42,287.60, 63,327.72 and 28,394.48

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Solution

The fourth proportional to 42,287.60, 63,327.72 and 28,394.48 is: 42,522.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,287.60 : 63,327.72 = 28,394.48 : x
  2. Step 2: Convert to fraction form
    42,287.60/63,327.72 = 28,394.48/x
  3. Step 3: Cross multiply
    42,287.60x = 63,327.72 × 28,394.48
  4. Step 4: Simplify right side
    42,287.60x = 1,798,157,678.99
  5. Step 5: Solve for x
    x = 1,798,157,678.99/42,287.60
  6. Step 6: Final answer
    x = 42,522.10

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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.