Home / 56,520.11-84,782.03-28,424.79

Finding the Fourth Proportional to 56,520.11, 84,782.03 and 28,424.79

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Solution

The fourth proportional to 56,520.11, 84,782.03 and 28,424.79 is: 42,638.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,520.11 : 84,782.03 = 28,424.79 : x
  2. Step 2: Convert to fraction form
    56,520.11/84,782.03 = 28,424.79/x
  3. Step 3: Cross multiply
    56,520.11x = 84,782.03 × 28,424.79
  4. Step 4: Simplify right side
    56,520.11x = 2,409,911,256.40
  5. Step 5: Solve for x
    x = 2,409,911,256.40/56,520.11
  6. Step 6: Final answer
    x = 42,638.12

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.