Home / 61,515.12-92,239.87-31,859.40

Finding the Fourth Proportional to 61,515.12, 92,239.87 and 31,859.40

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Solution

The fourth proportional to 61,515.12, 92,239.87 and 31,859.40 is: 47,772.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,515.12 : 92,239.87 = 31,859.40 : x
  2. Step 2: Convert to fraction form
    61,515.12/92,239.87 = 31,859.40/x
  3. Step 3: Cross multiply
    61,515.12x = 92,239.87 × 31,859.40
  4. Step 4: Simplify right side
    61,515.12x = 2,938,706,914.28
  5. Step 5: Solve for x
    x = 2,938,706,914.28/61,515.12
  6. Step 6: Final answer
    x = 47,772.11

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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.