Home / 55,899.40-77,136.96-30,750.52

Finding the Fourth Proportional to 55,899.40, 77,136.96 and 30,750.52

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Solution

The fourth proportional to 55,899.40, 77,136.96 and 30,750.52 is: 42,433.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,899.40 : 77,136.96 = 30,750.52 : x
  2. Step 2: Convert to fraction form
    55,899.40/77,136.96 = 30,750.52/x
  3. Step 3: Cross multiply
    55,899.40x = 77,136.96 × 30,750.52
  4. Step 4: Simplify right side
    55,899.40x = 2,372,001,631.22
  5. Step 5: Solve for x
    x = 2,372,001,631.22/55,899.40
  6. Step 6: Final answer
    x = 42,433.40

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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.