Home / 61,239.18-91,862.20-19,125.08

Finding the Fourth Proportional to 61,239.18, 91,862.20 and 19,125.08

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Solution

The fourth proportional to 61,239.18, 91,862.20 and 19,125.08 is: 28,688.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,239.18 : 91,862.20 = 19,125.08 : x
  2. Step 2: Convert to fraction form
    61,239.18/91,862.20 = 19,125.08/x
  3. Step 3: Cross multiply
    61,239.18x = 91,862.20 × 19,125.08
  4. Step 4: Simplify right side
    61,239.18x = 1,756,871,923.98
  5. Step 5: Solve for x
    x = 1,756,871,923.98/61,239.18
  6. Step 6: Final answer
    x = 28,688.69

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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.