Home / 56,260.36-77,642.58-31,112.20

Finding the Fourth Proportional to 56,260.36, 77,642.58 and 31,112.20

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Solution

The fourth proportional to 56,260.36, 77,642.58 and 31,112.20 is: 42,936.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,260.36 : 77,642.58 = 31,112.20 : x
  2. Step 2: Convert to fraction form
    56,260.36/77,642.58 = 31,112.20/x
  3. Step 3: Cross multiply
    56,260.36x = 77,642.58 × 31,112.20
  4. Step 4: Simplify right side
    56,260.36x = 2,415,631,477.48
  5. Step 5: Solve for x
    x = 2,415,631,477.48/56,260.36
  6. Step 6: Final answer
    x = 42,936.65

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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.