Home / 55,899.84-77,140.20-30,749.34

Finding the Fourth Proportional to 55,899.84, 77,140.20 and 30,749.34

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Solution

The fourth proportional to 55,899.84, 77,140.20 and 30,749.34 is: 42,433.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,899.84 : 77,140.20 = 30,749.34 : x
  2. Step 2: Convert to fraction form
    55,899.84/77,140.20 = 30,749.34/x
  3. Step 3: Cross multiply
    55,899.84x = 77,140.20 × 30,749.34
  4. Step 4: Simplify right side
    55,899.84x = 2,372,010,237.47
  5. Step 5: Solve for x
    x = 2,372,010,237.47/55,899.84
  6. Step 6: Final answer
    x = 42,433.22

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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.