Home / 56,358.78-77,777.76-31,208.82

Finding the Fourth Proportional to 56,358.78, 77,777.76 and 31,208.82

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Solution

The fourth proportional to 56,358.78, 77,777.76 and 31,208.82 is: 43,069.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,358.78 : 77,777.76 = 31,208.82 : x
  2. Step 2: Convert to fraction form
    56,358.78/77,777.76 = 31,208.82/x
  3. Step 3: Cross multiply
    56,358.78x = 77,777.76 × 31,208.82
  4. Step 4: Simplify right side
    56,358.78x = 2,427,352,111.84
  5. Step 5: Solve for x
    x = 2,427,352,111.84/56,358.78
  6. Step 6: Final answer
    x = 43,069.64

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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.