Home / 78,095.32-107,771.52-42,285.64

Finding the Fourth Proportional to 78,095.32, 107,771.52 and 42,285.64

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Solution

The fourth proportional to 78,095.32, 107,771.52 and 42,285.64 is: 58,354.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,095.32 : 107,771.52 = 42,285.64 : x
  2. Step 2: Convert to fraction form
    78,095.32/107,771.52 = 42,285.64/x
  3. Step 3: Cross multiply
    78,095.32x = 107,771.52 × 42,285.64
  4. Step 4: Simplify right side
    78,095.32x = 4,557,187,696.97
  5. Step 5: Solve for x
    x = 4,557,187,696.97/78,095.32
  6. Step 6: Final answer
    x = 58,354.17

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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.