Home / 56,689.40-78,232.80-31,196.42

Finding the Fourth Proportional to 56,689.40, 78,232.80 and 31,196.42

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Solution

The fourth proportional to 56,689.40, 78,232.80 and 31,196.42 is: 43,051.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,689.40 : 78,232.80 = 31,196.42 : x
  2. Step 2: Convert to fraction form
    56,689.40/78,232.80 = 31,196.42/x
  3. Step 3: Cross multiply
    56,689.40x = 78,232.80 × 31,196.42
  4. Step 4: Simplify right side
    56,689.40x = 2,440,583,286.58
  5. Step 5: Solve for x
    x = 2,440,583,286.58/56,689.40
  6. Step 6: Final answer
    x = 43,051.85

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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.