Home / 55,903.72-77,148.32-30,753.22

Finding the Fourth Proportional to 55,903.72, 77,148.32 and 30,753.22

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Solution

The fourth proportional to 55,903.72, 77,148.32 and 30,753.22 is: 42,440.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,903.72 : 77,148.32 = 30,753.22 : x
  2. Step 2: Convert to fraction form
    55,903.72/77,148.32 = 30,753.22/x
  3. Step 3: Cross multiply
    55,903.72x = 77,148.32 × 30,753.22
  4. Step 4: Simplify right side
    55,903.72x = 2,372,559,257.59
  5. Step 5: Solve for x
    x = 2,372,559,257.59/55,903.72
  6. Step 6: Final answer
    x = 42,440.10

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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.