Home / 85,869.05-118,475.06-55,655.64

Finding the Fourth Proportional to 85,869.05, 118,475.06 and 55,655.64

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Solution

The fourth proportional to 85,869.05, 118,475.06 and 55,655.64 is: 76,789.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,869.05 : 118,475.06 = 55,655.64 : x
  2. Step 2: Convert to fraction form
    85,869.05/118,475.06 = 55,655.64/x
  3. Step 3: Cross multiply
    85,869.05x = 118,475.06 × 55,655.64
  4. Step 4: Simplify right side
    85,869.05x = 6,593,805,010.06
  5. Step 5: Solve for x
    x = 6,593,805,010.06/85,869.05
  6. Step 6: Final answer
    x = 76,789.08

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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.