Home / 78,417.28-117,625.74-34,038.28

Finding the Fourth Proportional to 78,417.28, 117,625.74 and 34,038.28

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Solution

The fourth proportional to 78,417.28, 117,625.74 and 34,038.28 is: 51,057.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,417.28 : 117,625.74 = 34,038.28 : x
  2. Step 2: Convert to fraction form
    78,417.28/117,625.74 = 34,038.28/x
  3. Step 3: Cross multiply
    78,417.28x = 117,625.74 × 34,038.28
  4. Step 4: Simplify right side
    78,417.28x = 4,003,777,873.33
  5. Step 5: Solve for x
    x = 4,003,777,873.33/78,417.28
  6. Step 6: Final answer
    x = 51,057.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.