Home / 73,240.13-109,681.04-66,140.40

Finding the Fourth Proportional to 73,240.13, 109,681.04 and 66,140.40

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Solution

The fourth proportional to 73,240.13, 109,681.04 and 66,140.40 is: 99,048.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,240.13 : 109,681.04 = 66,140.40 : x
  2. Step 2: Convert to fraction form
    73,240.13/109,681.04 = 66,140.40/x
  3. Step 3: Cross multiply
    73,240.13x = 109,681.04 × 66,140.40
  4. Step 4: Simplify right side
    73,240.13x = 7,254,348,280.43
  5. Step 5: Solve for x
    x = 7,254,348,280.43/73,240.13
  6. Step 6: Final answer
    x = 99,048.82

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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.