Home / 55,890.24-77,126.76-30,739.56

Finding the Fourth Proportional to 55,890.24, 77,126.76 and 30,739.56

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Solution

The fourth proportional to 55,890.24, 77,126.76 and 30,739.56 is: 42,419.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,890.24 : 77,126.76 = 30,739.56 : x
  2. Step 2: Convert to fraction form
    55,890.24/77,126.76 = 30,739.56/x
  3. Step 3: Cross multiply
    55,890.24x = 77,126.76 × 30,739.56
  4. Step 4: Simplify right side
    55,890.24x = 2,370,842,666.63
  5. Step 5: Solve for x
    x = 2,370,842,666.63/55,890.24
  6. Step 6: Final answer
    x = 42,419.62

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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.