Home / 53,330.46-79,968.80-17,779.16

Finding the Fourth Proportional to 53,330.46, 79,968.80 and 17,779.16

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Solution

The fourth proportional to 53,330.46, 79,968.80 and 17,779.16 is: 26,659.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,330.46 : 79,968.80 = 17,779.16 : x
  2. Step 2: Convert to fraction form
    53,330.46/79,968.80 = 17,779.16/x
  3. Step 3: Cross multiply
    53,330.46x = 79,968.80 × 17,779.16
  4. Step 4: Simplify right side
    53,330.46x = 1,421,778,090.21
  5. Step 5: Solve for x
    x = 1,421,778,090.21/53,330.46
  6. Step 6: Final answer
    x = 26,659.78

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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.