Home / 51,417.86-70,956.44-28,756.76

Finding the Fourth Proportional to 51,417.86, 70,956.44 and 28,756.76

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Solution

The fourth proportional to 51,417.86, 70,956.44 and 28,756.76 is: 39,684.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,417.86 : 70,956.44 = 28,756.76 : x
  2. Step 2: Convert to fraction form
    51,417.86/70,956.44 = 28,756.76/x
  3. Step 3: Cross multiply
    51,417.86x = 70,956.44 × 28,756.76
  4. Step 4: Simplify right side
    51,417.86x = 2,040,476,924.81
  5. Step 5: Solve for x
    x = 2,040,476,924.81/51,417.86
  6. Step 6: Final answer
    x = 39,684.21

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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.