Home / 77,585.30-107,072.30-58,431.29

Finding the Fourth Proportional to 77,585.30, 107,072.30 and 58,431.29

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Solution

The fourth proportional to 77,585.30, 107,072.30 and 58,431.29 is: 80,638.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,585.30 : 107,072.30 = 58,431.29 : x
  2. Step 2: Convert to fraction form
    77,585.30/107,072.30 = 58,431.29/x
  3. Step 3: Cross multiply
    77,585.30x = 107,072.30 × 58,431.29
  4. Step 4: Simplify right side
    77,585.30x = 6,256,371,784.75
  5. Step 5: Solve for x
    x = 6,256,371,784.75/77,585.30
  6. Step 6: Final answer
    x = 80,638.63

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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.