Home / 55,153.67-76,070.35-38,186.31

Finding the Fourth Proportional to 55,153.67, 76,070.35 and 38,186.31

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Solution

The fourth proportional to 55,153.67, 76,070.35 and 38,186.31 is: 52,668.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,153.67 : 76,070.35 = 38,186.31 : x
  2. Step 2: Convert to fraction form
    55,153.67/76,070.35 = 38,186.31/x
  3. Step 3: Cross multiply
    55,153.67x = 76,070.35 × 38,186.31
  4. Step 4: Simplify right side
    55,153.67x = 2,904,846,139.66
  5. Step 5: Solve for x
    x = 2,904,846,139.66/55,153.67
  6. Step 6: Final answer
    x = 52,668.23

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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.