Home / 77,784.15-107,333.91-43,792.02

Finding the Fourth Proportional to 77,784.15, 107,333.91 and 43,792.02

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Solution

The fourth proportional to 77,784.15, 107,333.91 and 43,792.02 is: 60,428.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,784.15 : 107,333.91 = 43,792.02 : x
  2. Step 2: Convert to fraction form
    77,784.15/107,333.91 = 43,792.02/x
  3. Step 3: Cross multiply
    77,784.15x = 107,333.91 × 43,792.02
  4. Step 4: Simplify right side
    77,784.15x = 4,700,368,733.40
  5. Step 5: Solve for x
    x = 4,700,368,733.40/77,784.15
  6. Step 6: Final answer
    x = 60,428.36

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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.