Home / 56,762.82-78,335.12-31,612.32

Finding the Fourth Proportional to 56,762.82, 78,335.12 and 31,612.32

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Solution

The fourth proportional to 56,762.82, 78,335.12 and 31,612.32 is: 43,626.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,762.82 : 78,335.12 = 31,612.32 : x
  2. Step 2: Convert to fraction form
    56,762.82/78,335.12 = 31,612.32/x
  3. Step 3: Cross multiply
    56,762.82x = 78,335.12 × 31,612.32
  4. Step 4: Simplify right side
    56,762.82x = 2,476,354,722.62
  5. Step 5: Solve for x
    x = 2,476,354,722.62/56,762.82
  6. Step 6: Final answer
    x = 43,626.35

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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.