Home / 78,592.16-108,457.19-42,782.44

Finding the Fourth Proportional to 78,592.16, 108,457.19 and 42,782.44

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Solution

The fourth proportional to 78,592.16, 108,457.19 and 42,782.44 is: 59,039.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,592.16 : 108,457.19 = 42,782.44 : x
  2. Step 2: Convert to fraction form
    78,592.16/108,457.19 = 42,782.44/x
  3. Step 3: Cross multiply
    78,592.16x = 108,457.19 × 42,782.44
  4. Step 4: Simplify right side
    78,592.16x = 4,640,063,059.56
  5. Step 5: Solve for x
    x = 4,640,063,059.56/78,592.16
  6. Step 6: Final answer
    x = 59,039.77

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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.