Home / 78,032.70-107,684.91-42,223.32

Finding the Fourth Proportional to 78,032.70, 107,684.91 and 42,223.32

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Solution

The fourth proportional to 78,032.70, 107,684.91 and 42,223.32 is: 58,268.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,032.70 : 107,684.91 = 42,223.32 : x
  2. Step 2: Convert to fraction form
    78,032.70/107,684.91 = 42,223.32/x
  3. Step 3: Cross multiply
    78,032.70x = 107,684.91 × 42,223.32
  4. Step 4: Simplify right side
    78,032.70x = 4,546,814,414.10
  5. Step 5: Solve for x
    x = 4,546,814,414.10/78,032.70
  6. Step 6: Final answer
    x = 58,268.06

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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.