Home / 85,307.45-127,985.76-26,151.84

Finding the Fourth Proportional to 85,307.45, 127,985.76 and 26,151.84

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Solution

The fourth proportional to 85,307.45, 127,985.76 and 26,151.84 is: 39,235.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,307.45 : 127,985.76 = 26,151.84 : x
  2. Step 2: Convert to fraction form
    85,307.45/127,985.76 = 26,151.84/x
  3. Step 3: Cross multiply
    85,307.45x = 127,985.76 × 26,151.84
  4. Step 4: Simplify right side
    85,307.45x = 3,347,063,117.80
  5. Step 5: Solve for x
    x = 3,347,063,117.80/85,307.45
  6. Step 6: Final answer
    x = 39,235.30

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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.