Home / 70,040.82-96,647.90-39,826.20

Finding the Fourth Proportional to 70,040.82, 96,647.90 and 39,826.20

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Solution

The fourth proportional to 70,040.82, 96,647.90 and 39,826.20 is: 54,955.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,040.82 : 96,647.90 = 39,826.20 : x
  2. Step 2: Convert to fraction form
    70,040.82/96,647.90 = 39,826.20/x
  3. Step 3: Cross multiply
    70,040.82x = 96,647.90 × 39,826.20
  4. Step 4: Simplify right side
    70,040.82x = 3,849,118,594.98
  5. Step 5: Solve for x
    x = 3,849,118,594.98/70,040.82
  6. Step 6: Final answer
    x = 54,955.36

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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.