Home / 75,430.02-113,192.67-42,171.90

Finding the Fourth Proportional to 75,430.02, 113,192.67 and 42,171.90

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Solution

The fourth proportional to 75,430.02, 113,192.67 and 42,171.90 is: 63,284.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,430.02 : 113,192.67 = 42,171.90 : x
  2. Step 2: Convert to fraction form
    75,430.02/113,192.67 = 42,171.90/x
  3. Step 3: Cross multiply
    75,430.02x = 113,192.67 × 42,171.90
  4. Step 4: Simplify right side
    75,430.02x = 4,773,549,959.97
  5. Step 5: Solve for x
    x = 4,773,549,959.97/75,430.02
  6. Step 6: Final answer
    x = 63,284.48

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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.