Home / 61,239.19-91,862.20-19,125.09

Finding the Fourth Proportional to 61,239.19, 91,862.20 and 19,125.09

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Solution

The fourth proportional to 61,239.19, 91,862.20 and 19,125.09 is: 28,688.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,239.19 : 91,862.20 = 19,125.09 : x
  2. Step 2: Convert to fraction form
    61,239.19/91,862.20 = 19,125.09/x
  3. Step 3: Cross multiply
    61,239.19x = 91,862.20 × 19,125.09
  4. Step 4: Simplify right side
    61,239.19x = 1,756,872,608.14
  5. Step 5: Solve for x
    x = 1,756,872,608.14/61,239.19
  6. Step 6: Final answer
    x = 28,688.70

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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.