Home / 72,084.47-99,476.78-40,254.57

Finding the Fourth Proportional to 72,084.47, 99,476.78 and 40,254.57

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Solution

The fourth proportional to 72,084.47, 99,476.78 and 40,254.57 is: 55,551.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,084.47 : 99,476.78 = 40,254.57 : x
  2. Step 2: Convert to fraction form
    72,084.47/99,476.78 = 40,254.57/x
  3. Step 3: Cross multiply
    72,084.47x = 99,476.78 × 40,254.57
  4. Step 4: Simplify right side
    72,084.47x = 4,004,394,802.61
  5. Step 5: Solve for x
    x = 4,004,394,802.61/72,084.47
  6. Step 6: Final answer
    x = 55,551.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.