Home / 55,051.86-82,551.75-21,333.66

Finding the Fourth Proportional to 55,051.86, 82,551.75 and 21,333.66

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Solution

The fourth proportional to 55,051.86, 82,551.75 and 21,333.66 is: 31,990.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,051.86 : 82,551.75 = 21,333.66 : x
  2. Step 2: Convert to fraction form
    55,051.86/82,551.75 = 21,333.66/x
  3. Step 3: Cross multiply
    55,051.86x = 82,551.75 × 21,333.66
  4. Step 4: Simplify right side
    55,051.86x = 1,761,130,966.91
  5. Step 5: Solve for x
    x = 1,761,130,966.91/55,051.86
  6. Step 6: Final answer
    x = 31,990.40

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1.5x scale

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.