Home / 53,140.08-73,322.54-40,389.86

Finding the Fourth Proportional to 53,140.08, 73,322.54 and 40,389.86

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Solution

The fourth proportional to 53,140.08, 73,322.54 and 40,389.86 is: 55,729.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,140.08 : 73,322.54 = 40,389.86 : x
  2. Step 2: Convert to fraction form
    53,140.08/73,322.54 = 40,389.86/x
  3. Step 3: Cross multiply
    53,140.08x = 73,322.54 × 40,389.86
  4. Step 4: Simplify right side
    53,140.08x = 2,961,487,125.44
  5. Step 5: Solve for x
    x = 2,961,487,125.44/53,140.08
  6. Step 6: Final answer
    x = 55,729.82

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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.