Home / 85,308.95-127,988.01-26,153.34

Finding the Fourth Proportional to 85,308.95, 127,988.01 and 26,153.34

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Solution

The fourth proportional to 85,308.95, 127,988.01 and 26,153.34 is: 39,237.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,308.95 : 127,988.01 = 26,153.34 : x
  2. Step 2: Convert to fraction form
    85,308.95/127,988.01 = 26,153.34/x
  3. Step 3: Cross multiply
    85,308.95x = 127,988.01 × 26,153.34
  4. Step 4: Simplify right side
    85,308.95x = 3,347,313,941.45
  5. Step 5: Solve for x
    x = 3,347,313,941.45/85,308.95
  6. Step 6: Final answer
    x = 39,237.55

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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.