Home / 56,112.52-77,435.07-30,618.66

Finding the Fourth Proportional to 56,112.52, 77,435.07 and 30,618.66

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Solution

The fourth proportional to 56,112.52, 77,435.07 and 30,618.66 is: 42,253.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,112.52 : 77,435.07 = 30,618.66 : x
  2. Step 2: Convert to fraction form
    56,112.52/77,435.07 = 30,618.66/x
  3. Step 3: Cross multiply
    56,112.52x = 77,435.07 × 30,618.66
  4. Step 4: Simplify right side
    56,112.52x = 2,370,957,927.31
  5. Step 5: Solve for x
    x = 2,370,957,927.31/56,112.52
  6. Step 6: Final answer
    x = 42,253.63

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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.