Home / 56,009.27-77,292.36-30,515.56

Finding the Fourth Proportional to 56,009.27, 77,292.36 and 30,515.56

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Solution

The fourth proportional to 56,009.27, 77,292.36 and 30,515.56 is: 42,111.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,009.27 : 77,292.36 = 30,515.56 : x
  2. Step 2: Convert to fraction form
    56,009.27/77,292.36 = 30,515.56/x
  3. Step 3: Cross multiply
    56,009.27x = 77,292.36 × 30,515.56
  4. Step 4: Simplify right side
    56,009.27x = 2,358,619,570.32
  5. Step 5: Solve for x
    x = 2,358,619,570.32/56,009.27
  6. Step 6: Final answer
    x = 42,111.24

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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.