Home / 85,332.15-127,813.55-55,659.96

Finding the Fourth Proportional to 85,332.15, 127,813.55 and 55,659.96

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Solution

The fourth proportional to 85,332.15, 127,813.55 and 55,659.96 is: 83,369.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,332.15 : 127,813.55 = 55,659.96 : x
  2. Step 2: Convert to fraction form
    85,332.15/127,813.55 = 55,659.96/x
  3. Step 3: Cross multiply
    85,332.15x = 127,813.55 × 55,659.96
  4. Step 4: Simplify right side
    85,332.15x = 7,114,096,802.16
  5. Step 5: Solve for x
    x = 7,114,096,802.16/85,332.15
  6. Step 6: Final answer
    x = 83,369.48

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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.