Home / 72,005.13-108,083.81-40,442.18

Finding the Fourth Proportional to 72,005.13, 108,083.81 and 40,442.18

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Solution

The fourth proportional to 72,005.13, 108,083.81 and 40,442.18 is: 60,706.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,005.13 : 108,083.81 = 40,442.18 : x
  2. Step 2: Convert to fraction form
    72,005.13/108,083.81 = 40,442.18/x
  3. Step 3: Cross multiply
    72,005.13x = 108,083.81 × 40,442.18
  4. Step 4: Simplify right side
    72,005.13x = 4,371,144,459.79
  5. Step 5: Solve for x
    x = 4,371,144,459.79/72,005.13
  6. Step 6: Final answer
    x = 60,706.01

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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.