Home / 72,985.13-109,477.70-17,581.13

Finding the Fourth Proportional to 72,985.13, 109,477.70 and 17,581.13

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Solution

The fourth proportional to 72,985.13, 109,477.70 and 17,581.13 is: 26,371.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,985.13 : 109,477.70 = 17,581.13 : x
  2. Step 2: Convert to fraction form
    72,985.13/109,477.70 = 17,581.13/x
  3. Step 3: Cross multiply
    72,985.13x = 109,477.70 × 17,581.13
  4. Step 4: Simplify right side
    72,985.13x = 1,924,741,040.51
  5. Step 5: Solve for x
    x = 1,924,741,040.51/72,985.13
  6. Step 6: Final answer
    x = 26,371.69

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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.