Home / 85,915.32-118,524.30-55,708.29

Finding the Fourth Proportional to 85,915.32, 118,524.30 and 55,708.29

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Solution

The fourth proportional to 85,915.32, 118,524.30 and 55,708.29 is: 76,852.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,915.32 : 118,524.30 = 55,708.29 : x
  2. Step 2: Convert to fraction form
    85,915.32/118,524.30 = 55,708.29/x
  3. Step 3: Cross multiply
    85,915.32x = 118,524.30 × 55,708.29
  4. Step 4: Simplify right side
    85,915.32x = 6,602,786,076.45
  5. Step 5: Solve for x
    x = 6,602,786,076.45/85,915.32
  6. Step 6: Final answer
    x = 76,852.25

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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.