Home / 55,357.90-76,391.20-31,484.06

Finding the Fourth Proportional to 55,357.90, 76,391.20 and 31,484.06

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Solution

The fourth proportional to 55,357.90, 76,391.20 and 31,484.06 is: 43,446.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,357.90 : 76,391.20 = 31,484.06 : x
  2. Step 2: Convert to fraction form
    55,357.90/76,391.20 = 31,484.06/x
  3. Step 3: Cross multiply
    55,357.90x = 76,391.20 × 31,484.06
  4. Step 4: Simplify right side
    55,357.90x = 2,405,105,068.14
  5. Step 5: Solve for x
    x = 2,405,105,068.14/55,357.90
  6. Step 6: Final answer
    x = 43,446.47

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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.