Home / 84,619.47-126,795.69-31,237.98

Finding the Fourth Proportional to 84,619.47, 126,795.69 and 31,237.98

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Solution

The fourth proportional to 84,619.47, 126,795.69 and 31,237.98 is: 46,807.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,619.47 : 126,795.69 = 31,237.98 : x
  2. Step 2: Convert to fraction form
    84,619.47/126,795.69 = 31,237.98/x
  3. Step 3: Cross multiply
    84,619.47x = 126,795.69 × 31,237.98
  4. Step 4: Simplify right side
    84,619.47x = 3,960,841,228.31
  5. Step 5: Solve for x
    x = 3,960,841,228.31/84,619.47
  6. Step 6: Final answer
    x = 46,807.68

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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.