Home / 56,806.60-78,406.45-35,312.56

Finding the Fourth Proportional to 56,806.60, 78,406.45 and 35,312.56

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Solution

The fourth proportional to 56,806.60, 78,406.45 and 35,312.56 is: 48,739.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,806.60 : 78,406.45 = 35,312.56 : x
  2. Step 2: Convert to fraction form
    56,806.60/78,406.45 = 35,312.56/x
  3. Step 3: Cross multiply
    56,806.60x = 78,406.45 × 35,312.56
  4. Step 4: Simplify right side
    56,806.60x = 2,768,732,470.01
  5. Step 5: Solve for x
    x = 2,768,732,470.01/56,806.60
  6. Step 6: Final answer
    x = 48,739.63

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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.