Home / 85,865.98-118,493.28-47,619.36

Finding the Fourth Proportional to 85,865.98, 118,493.28 and 47,619.36

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Solution

The fourth proportional to 85,865.98, 118,493.28 and 47,619.36 is: 65,713.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,865.98 : 118,493.28 = 47,619.36 : x
  2. Step 2: Convert to fraction form
    85,865.98/118,493.28 = 47,619.36/x
  3. Step 3: Cross multiply
    85,865.98x = 118,493.28 × 47,619.36
  4. Step 4: Simplify right side
    85,865.98x = 5,642,574,157.90
  5. Step 5: Solve for x
    x = 5,642,574,157.90/85,865.98
  6. Step 6: Final answer
    x = 65,713.73

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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.