Home / 71,038.08-106,574.66-21,117.97

Finding the Fourth Proportional to 71,038.08, 106,574.66 and 21,117.97

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Solution

The fourth proportional to 71,038.08, 106,574.66 and 21,117.97 is: 31,682.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,038.08 : 106,574.66 = 21,117.97 : x
  2. Step 2: Convert to fraction form
    71,038.08/106,574.66 = 21,117.97/x
  3. Step 3: Cross multiply
    71,038.08x = 106,574.66 × 21,117.97
  4. Step 4: Simplify right side
    71,038.08x = 2,250,639,939.77
  5. Step 5: Solve for x
    x = 2,250,639,939.77/71,038.08
  6. Step 6: Final answer
    x = 31,682.16

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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.