Home / 61,122.04-91,665-18,425.68

Finding the Fourth Proportional to 61,122.04, 91,665 and 18,425.68

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Solution

The fourth proportional to 61,122.04, 91,665 and 18,425.68 is: 27,633.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,122.04 : 91,665 = 18,425.68 : x
  2. Step 2: Convert to fraction form
    61,122.04/91,665 = 18,425.68/x
  3. Step 3: Cross multiply
    61,122.04x = 91,665 × 18,425.68
  4. Step 4: Simplify right side
    61,122.04x = 1,688,989,957.20
  5. Step 5: Solve for x
    x = 1,688,989,957.20/61,122.04
  6. Step 6: Final answer
    x = 27,633.08

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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.