Home / 55,903.07-77,147.46-30,752.57

Finding the Fourth Proportional to 55,903.07, 77,147.46 and 30,752.57

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Solution

The fourth proportional to 55,903.07, 77,147.46 and 30,752.57 is: 42,439.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,903.07 : 77,147.46 = 30,752.57 : x
  2. Step 2: Convert to fraction form
    55,903.07/77,147.46 = 30,752.57/x
  3. Step 3: Cross multiply
    55,903.07x = 77,147.46 × 30,752.57
  4. Step 4: Simplify right side
    55,903.07x = 2,372,482,663.97
  5. Step 5: Solve for x
    x = 2,372,482,663.97/55,903.07
  6. Step 6: Final answer
    x = 42,439.22

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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.