Home / 84,929.72-127,397.81-31,635.16

Finding the Fourth Proportional to 84,929.72, 127,397.81 and 31,635.16

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Solution

The fourth proportional to 84,929.72, 127,397.81 and 31,635.16 is: 47,453.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,929.72 : 127,397.81 = 31,635.16 : x
  2. Step 2: Convert to fraction form
    84,929.72/127,397.81 = 31,635.16/x
  3. Step 3: Cross multiply
    84,929.72x = 127,397.81 × 31,635.16
  4. Step 4: Simplify right side
    84,929.72x = 4,030,249,863.59
  5. Step 5: Solve for x
    x = 4,030,249,863.59/84,929.72
  6. Step 6: Final answer
    x = 47,453.94

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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.