Home / 61,051.40-91,503.29-31,453.09

Finding the Fourth Proportional to 61,051.40, 91,503.29 and 31,453.09

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Solution

The fourth proportional to 61,051.40, 91,503.29 and 31,453.09 is: 47,141.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,051.40 : 91,503.29 = 31,453.09 : x
  2. Step 2: Convert to fraction form
    61,051.40/91,503.29 = 31,453.09/x
  3. Step 3: Cross multiply
    61,051.40x = 91,503.29 × 31,453.09
  4. Step 4: Simplify right side
    61,051.40x = 2,878,060,888.62
  5. Step 5: Solve for x
    x = 2,878,060,888.62/61,051.40
  6. Step 6: Final answer
    x = 47,141.60

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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.