Home / 85,788.32-118,390.82-47,547.41

Finding the Fourth Proportional to 85,788.32, 118,390.82 and 47,547.41

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Solution

The fourth proportional to 85,788.32, 118,390.82 and 47,547.41 is: 65,617.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,788.32 : 118,390.82 = 47,547.41 : x
  2. Step 2: Convert to fraction form
    85,788.32/118,390.82 = 47,547.41/x
  3. Step 3: Cross multiply
    85,788.32x = 118,390.82 × 47,547.41
  4. Step 4: Simplify right side
    85,788.32x = 5,629,176,029.09
  5. Step 5: Solve for x
    x = 5,629,176,029.09/85,788.32
  6. Step 6: Final answer
    x = 65,617.05

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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.