Home / 85,301.36-127,689.58-55,655.36

Finding the Fourth Proportional to 85,301.36, 127,689.58 and 55,655.36

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Solution

The fourth proportional to 85,301.36, 127,689.58 and 55,655.36 is: 83,311.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,301.36 : 127,689.58 = 55,655.36 : x
  2. Step 2: Convert to fraction form
    85,301.36/127,689.58 = 55,655.36/x
  3. Step 3: Cross multiply
    85,301.36x = 127,689.58 × 55,655.36
  4. Step 4: Simplify right side
    85,301.36x = 7,106,609,543.15
  5. Step 5: Solve for x
    x = 7,106,609,543.15/85,301.36
  6. Step 6: Final answer
    x = 83,311.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.