Home / 45,345.18-68,017.93-13,755.51

Finding the Fourth Proportional to 45,345.18, 68,017.93 and 13,755.51

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Solution

The fourth proportional to 45,345.18, 68,017.93 and 13,755.51 is: 20,633.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,345.18 : 68,017.93 = 13,755.51 : x
  2. Step 2: Convert to fraction form
    45,345.18/68,017.93 = 13,755.51/x
  3. Step 3: Cross multiply
    45,345.18x = 68,017.93 × 13,755.51
  4. Step 4: Simplify right side
    45,345.18x = 935,621,316.29
  5. Step 5: Solve for x
    x = 935,621,316.29/45,345.18
  6. Step 6: Final answer
    x = 20,633.31

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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.