Home / 84,899.90-127,400.88-31,631.06

Finding the Fourth Proportional to 84,899.90, 127,400.88 and 31,631.06

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Solution

The fourth proportional to 84,899.90, 127,400.88 and 31,631.06 is: 47,465.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,899.90 : 127,400.88 = 31,631.06 : x
  2. Step 2: Convert to fraction form
    84,899.90/127,400.88 = 31,631.06/x
  3. Step 3: Cross multiply
    84,899.90x = 127,400.88 × 31,631.06
  4. Step 4: Simplify right side
    84,899.90x = 4,029,824,242.33
  5. Step 5: Solve for x
    x = 4,029,824,242.33/84,899.90
  6. Step 6: Final answer
    x = 47,465.60

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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.