Home / 45,320.13-67,989.93-19,009.71

Finding the Fourth Proportional to 45,320.13, 67,989.93 and 19,009.71

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Solution

The fourth proportional to 45,320.13, 67,989.93 and 19,009.71 is: 28,518.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,320.13 : 67,989.93 = 19,009.71 : x
  2. Step 2: Convert to fraction form
    45,320.13/67,989.93 = 19,009.71/x
  3. Step 3: Cross multiply
    45,320.13x = 67,989.93 × 19,009.71
  4. Step 4: Simplify right side
    45,320.13x = 1,292,468,852.22
  5. Step 5: Solve for x
    x = 1,292,468,852.22/45,320.13
  6. Step 6: Final answer
    x = 28,518.65

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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.