Home / 55,814.40-83,721.60-51,343.20

Finding the Fourth Proportional to 55,814.40, 83,721.60 and 51,343.20

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Solution

The fourth proportional to 55,814.40, 83,721.60 and 51,343.20 is: 77,014.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,814.40 : 83,721.60 = 51,343.20 : x
  2. Step 2: Convert to fraction form
    55,814.40/83,721.60 = 51,343.20/x
  3. Step 3: Cross multiply
    55,814.40x = 83,721.60 × 51,343.20
  4. Step 4: Simplify right side
    55,814.40x = 4,298,534,853.12
  5. Step 5: Solve for x
    x = 4,298,534,853.12/55,814.40
  6. Step 6: Final answer
    x = 77,014.80

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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.