Home / 77,857.14-107,442.86-42,047.16

Finding the Fourth Proportional to 77,857.14, 107,442.86 and 42,047.16

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Solution

The fourth proportional to 77,857.14, 107,442.86 and 42,047.16 is: 58,025.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,857.14 : 107,442.86 = 42,047.16 : x
  2. Step 2: Convert to fraction form
    77,857.14/107,442.86 = 42,047.16/x
  3. Step 3: Cross multiply
    77,857.14x = 107,442.86 × 42,047.16
  4. Step 4: Simplify right side
    77,857.14x = 4,517,667,125.28
  5. Step 5: Solve for x
    x = 4,517,667,125.28/77,857.14
  6. Step 6: Final answer
    x = 58,025.08

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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.