Home / 78,056.33-107,717.60-42,246.32

Finding the Fourth Proportional to 78,056.33, 107,717.60 and 42,246.32

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Solution

The fourth proportional to 78,056.33, 107,717.60 and 42,246.32 is: 58,299.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,056.33 : 107,717.60 = 42,246.32 : x
  2. Step 2: Convert to fraction form
    78,056.33/107,717.60 = 42,246.32/x
  3. Step 3: Cross multiply
    78,056.33x = 107,717.60 × 42,246.32
  4. Step 4: Simplify right side
    78,056.33x = 4,550,671,766.26
  5. Step 5: Solve for x
    x = 4,550,671,766.26/78,056.33
  6. Step 6: Final answer
    x = 58,299.85

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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.