Home / 85,565.12-118,080.12-47,839.36

Finding the Fourth Proportional to 85,565.12, 118,080.12 and 47,839.36

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Solution

The fourth proportional to 85,565.12, 118,080.12 and 47,839.36 is: 66,018.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,565.12 : 118,080.12 = 47,839.36 : x
  2. Step 2: Convert to fraction form
    85,565.12/118,080.12 = 47,839.36/x
  3. Step 3: Cross multiply
    85,565.12x = 118,080.12 × 47,839.36
  4. Step 4: Simplify right side
    85,565.12x = 5,648,877,369.52
  5. Step 5: Solve for x
    x = 5,648,877,369.52/85,565.12
  6. Step 6: Final answer
    x = 66,018.46

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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.