Home / 55,521.86-76,622.15-31,644.68

Finding the Fourth Proportional to 55,521.86, 76,622.15 and 31,644.68

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Solution

The fourth proportional to 55,521.86, 76,622.15 and 31,644.68 is: 43,670.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,521.86 : 76,622.15 = 31,644.68 : x
  2. Step 2: Convert to fraction form
    55,521.86/76,622.15 = 31,644.68/x
  3. Step 3: Cross multiply
    55,521.86x = 76,622.15 × 31,644.68
  4. Step 4: Simplify right side
    55,521.86x = 2,424,683,417.66
  5. Step 5: Solve for x
    x = 2,424,683,417.66/55,521.86
  6. Step 6: Final answer
    x = 43,670.79

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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.