Home / 53,810.08-80,715.53-18,749.68

Finding the Fourth Proportional to 53,810.08, 80,715.53 and 18,749.68

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Solution

The fourth proportional to 53,810.08, 80,715.53 and 18,749.68 is: 28,124.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,810.08 : 80,715.53 = 18,749.68 : x
  2. Step 2: Convert to fraction form
    53,810.08/80,715.53 = 18,749.68/x
  3. Step 3: Cross multiply
    53,810.08x = 80,715.53 × 18,749.68
  4. Step 4: Simplify right side
    53,810.08x = 1,513,390,358.53
  5. Step 5: Solve for x
    x = 1,513,390,358.53/53,810.08
  6. Step 6: Final answer
    x = 28,124.66

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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.