Home / 53,130.15-79,695.09-13,683.96

Finding the Fourth Proportional to 53,130.15, 79,695.09 and 13,683.96

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Solution

The fourth proportional to 53,130.15, 79,695.09 and 13,683.96 is: 20,525.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,130.15 : 79,695.09 = 13,683.96 : x
  2. Step 2: Convert to fraction form
    53,130.15/79,695.09 = 13,683.96/x
  3. Step 3: Cross multiply
    53,130.15x = 79,695.09 × 13,683.96
  4. Step 4: Simplify right side
    53,130.15x = 1,090,544,423.76
  5. Step 5: Solve for x
    x = 1,090,544,423.76/53,130.15
  6. Step 6: Final answer
    x = 20,525.91

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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.