Home / 56,258.96-77,638.92-31,109.36

Finding the Fourth Proportional to 56,258.96, 77,638.92 and 31,109.36

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Solution

The fourth proportional to 56,258.96, 77,638.92 and 31,109.36 is: 42,931.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,258.96 : 77,638.92 = 31,109.36 : x
  2. Step 2: Convert to fraction form
    56,258.96/77,638.92 = 31,109.36/x
  3. Step 3: Cross multiply
    56,258.96x = 77,638.92 × 31,109.36
  4. Step 4: Simplify right side
    56,258.96x = 2,415,297,112.29
  5. Step 5: Solve for x
    x = 2,415,297,112.29/56,258.96
  6. Step 6: Final answer
    x = 42,931.78

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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.