Home / 53,354.07-79,887.71-40,643.28

Finding the Fourth Proportional to 53,354.07, 79,887.71 and 40,643.28

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Solution

The fourth proportional to 53,354.07, 79,887.71 and 40,643.28 is: 60,855.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,354.07 : 79,887.71 = 40,643.28 : x
  2. Step 2: Convert to fraction form
    53,354.07/79,887.71 = 40,643.28/x
  3. Step 3: Cross multiply
    53,354.07x = 79,887.71 × 40,643.28
  4. Step 4: Simplify right side
    53,354.07x = 3,246,898,362.87
  5. Step 5: Solve for x
    x = 3,246,898,362.87/53,354.07
  6. Step 6: Final answer
    x = 60,855.68

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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.