Home / 85,619.79-118,148.90-47,886.75

Finding the Fourth Proportional to 85,619.79, 118,148.90 and 47,886.75

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Solution

The fourth proportional to 85,619.79, 118,148.90 and 47,886.75 is: 66,080.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,619.79 : 118,148.90 = 47,886.75 : x
  2. Step 2: Convert to fraction form
    85,619.79/118,148.90 = 47,886.75/x
  3. Step 3: Cross multiply
    85,619.79x = 118,148.90 × 47,886.75
  4. Step 4: Simplify right side
    85,619.79x = 5,657,766,597.64
  5. Step 5: Solve for x
    x = 5,657,766,597.64/85,619.79
  6. Step 6: Final answer
    x = 66,080.13

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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.