Home / 45,500.13-68,271.86-20,547.81

Finding the Fourth Proportional to 45,500.13, 68,271.86 and 20,547.81

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Solution

The fourth proportional to 45,500.13, 68,271.86 and 20,547.81 is: 30,831.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,500.13 : 68,271.86 = 20,547.81 : x
  2. Step 2: Convert to fraction form
    45,500.13/68,271.86 = 20,547.81/x
  3. Step 3: Cross multiply
    45,500.13x = 68,271.86 × 20,547.81
  4. Step 4: Simplify right side
    45,500.13x = 1,402,837,104.89
  5. Step 5: Solve for x
    x = 1,402,837,104.89/45,500.13
  6. Step 6: Final answer
    x = 30,831.50

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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.