Home / 56,996.04-78,682.20-40,036.32

Finding the Fourth Proportional to 56,996.04, 78,682.20 and 40,036.32

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Solution

The fourth proportional to 56,996.04, 78,682.20 and 40,036.32 is: 55,269.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,996.04 : 78,682.20 = 40,036.32 : x
  2. Step 2: Convert to fraction form
    56,996.04/78,682.20 = 40,036.32/x
  3. Step 3: Cross multiply
    56,996.04x = 78,682.20 × 40,036.32
  4. Step 4: Simplify right side
    56,996.04x = 3,150,145,737.50
  5. Step 5: Solve for x
    x = 3,150,145,737.50/56,996.04
  6. Step 6: Final answer
    x = 55,269.55

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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.