Home / 53,501.25-79,900.55-42,987.24

Finding the Fourth Proportional to 53,501.25, 79,900.55 and 42,987.24

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Solution

The fourth proportional to 53,501.25, 79,900.55 and 42,987.24 is: 64,198.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,501.25 : 79,900.55 = 42,987.24 : x
  2. Step 2: Convert to fraction form
    53,501.25/79,900.55 = 42,987.24/x
  3. Step 3: Cross multiply
    53,501.25x = 79,900.55 × 42,987.24
  4. Step 4: Simplify right side
    53,501.25x = 3,434,703,904.05
  5. Step 5: Solve for x
    x = 3,434,703,904.05/53,501.25
  6. Step 6: Final answer
    x = 64,198.57

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.