Home / 85,712.07-118,295.06-47,988.75

Finding the Fourth Proportional to 85,712.07, 118,295.06 and 47,988.75

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Solution

The fourth proportional to 85,712.07, 118,295.06 and 47,988.75 is: 66,231.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,712.07 : 118,295.06 = 47,988.75 : x
  2. Step 2: Convert to fraction form
    85,712.07/118,295.06 = 47,988.75/x
  3. Step 3: Cross multiply
    85,712.07x = 118,295.06 × 47,988.75
  4. Step 4: Simplify right side
    85,712.07x = 5,676,831,820.63
  5. Step 5: Solve for x
    x = 5,676,831,820.63/85,712.07
  6. Step 6: Final answer
    x = 66,231.42

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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.