Home / 74,641.02-111,944.10-21,331.53

Finding the Fourth Proportional to 74,641.02, 111,944.10 and 21,331.53

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Solution

The fourth proportional to 74,641.02, 111,944.10 and 21,331.53 is: 31,992.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,641.02 : 111,944.10 = 21,331.53 : x
  2. Step 2: Convert to fraction form
    74,641.02/111,944.10 = 21,331.53/x
  3. Step 3: Cross multiply
    74,641.02x = 111,944.10 × 21,331.53
  4. Step 4: Simplify right side
    74,641.02x = 2,387,938,632.63
  5. Step 5: Solve for x
    x = 2,387,938,632.63/74,641.02
  6. Step 6: Final answer
    x = 31,992.31

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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.