Home / 53,319.48-79,971.02-17,781.42

Finding the Fourth Proportional to 53,319.48, 79,971.02 and 17,781.42

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Solution

The fourth proportional to 53,319.48, 79,971.02 and 17,781.42 is: 26,669.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,319.48 : 79,971.02 = 17,781.42 : x
  2. Step 2: Convert to fraction form
    53,319.48/79,971.02 = 17,781.42/x
  3. Step 3: Cross multiply
    53,319.48x = 79,971.02 × 17,781.42
  4. Step 4: Simplify right side
    53,319.48x = 1,421,998,294.45
  5. Step 5: Solve for x
    x = 1,421,998,294.45/53,319.48
  6. Step 6: Final answer
    x = 26,669.40

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1.5x scale

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.