Home / 55,931.26-77,186.76-30,439.26

Finding the Fourth Proportional to 55,931.26, 77,186.76 and 30,439.26

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Solution

The fourth proportional to 55,931.26, 77,186.76 and 30,439.26 is: 42,007.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,931.26 : 77,186.76 = 30,439.26 : x
  2. Step 2: Convert to fraction form
    55,931.26/77,186.76 = 30,439.26/x
  3. Step 3: Cross multiply
    55,931.26x = 77,186.76 × 30,439.26
  4. Step 4: Simplify right side
    55,931.26x = 2,349,507,856.20
  5. Step 5: Solve for x
    x = 2,349,507,856.20/55,931.26
  6. Step 6: Final answer
    x = 42,007.06

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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.