Home / 61,111.60-91,740.30-34,478.80

Finding the Fourth Proportional to 61,111.60, 91,740.30 and 34,478.80

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Solution

The fourth proportional to 61,111.60, 91,740.30 and 34,478.80 is: 51,759.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,111.60 : 91,740.30 = 34,478.80 : x
  2. Step 2: Convert to fraction form
    61,111.60/91,740.30 = 34,478.80/x
  3. Step 3: Cross multiply
    61,111.60x = 91,740.30 × 34,478.80
  4. Step 4: Simplify right side
    61,111.60x = 3,163,095,455.64
  5. Step 5: Solve for x
    x = 3,163,095,455.64/61,111.60
  6. Step 6: Final answer
    x = 51,759.33

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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.