Home / 55,113.19-76,058.12-31,239.65

Finding the Fourth Proportional to 55,113.19, 76,058.12 and 31,239.65

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Solution

The fourth proportional to 55,113.19, 76,058.12 and 31,239.65 is: 43,111.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,113.19 : 76,058.12 = 31,239.65 : x
  2. Step 2: Convert to fraction form
    55,113.19/76,058.12 = 31,239.65/x
  3. Step 3: Cross multiply
    55,113.19x = 76,058.12 × 31,239.65
  4. Step 4: Simplify right side
    55,113.19x = 2,376,029,048.46
  5. Step 5: Solve for x
    x = 2,376,029,048.46/55,113.19
  6. Step 6: Final answer
    x = 43,111.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.