Home / 94,664.80-141,824.40-77,039.20

Finding the Fourth Proportional to 94,664.80, 141,824.40 and 77,039.20

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Solution

The fourth proportional to 94,664.80, 141,824.40 and 77,039.20 is: 115,418.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,664.80 : 141,824.40 = 77,039.20 : x
  2. Step 2: Convert to fraction form
    94,664.80/141,824.40 = 77,039.20/x
  3. Step 3: Cross multiply
    94,664.80x = 141,824.40 × 77,039.20
  4. Step 4: Simplify right side
    94,664.80x = 10,926,038,316.48
  5. Step 5: Solve for x
    x = 10,926,038,316.48/94,664.80
  6. Step 6: Final answer
    x = 115,418.17

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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.