Home / 84,897.65-127,397.50-31,628.81

Finding the Fourth Proportional to 84,897.65, 127,397.50 and 31,628.81

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Solution

The fourth proportional to 84,897.65, 127,397.50 and 31,628.81 is: 47,462.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,897.65 : 127,397.50 = 31,628.81 : x
  2. Step 2: Convert to fraction form
    84,897.65/127,397.50 = 31,628.81/x
  3. Step 3: Cross multiply
    84,897.65x = 127,397.50 × 31,628.81
  4. Step 4: Simplify right side
    84,897.65x = 4,029,430,605.92
  5. Step 5: Solve for x
    x = 4,029,430,605.92/84,897.65
  6. Step 6: Final answer
    x = 47,462.22

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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.