Home / 78,095.40-107,771.70-42,285.44

Finding the Fourth Proportional to 78,095.40, 107,771.70 and 42,285.44

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Solution

The fourth proportional to 78,095.40, 107,771.70 and 42,285.44 is: 58,353.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,095.40 : 107,771.70 = 42,285.44 : x
  2. Step 2: Convert to fraction form
    78,095.40/107,771.70 = 42,285.44/x
  3. Step 3: Cross multiply
    78,095.40x = 107,771.70 × 42,285.44
  4. Step 4: Simplify right side
    78,095.40x = 4,557,173,215.19
  5. Step 5: Solve for x
    x = 4,557,173,215.19/78,095.40
  6. Step 6: Final answer
    x = 58,353.93

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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.