Home / 52,742.65-72,782.04-28,864.71

Finding the Fourth Proportional to 52,742.65, 72,782.04 and 28,864.71

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Solution

The fourth proportional to 52,742.65, 72,782.04 and 28,864.71 is: 39,831.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,742.65 : 72,782.04 = 28,864.71 : x
  2. Step 2: Convert to fraction form
    52,742.65/72,782.04 = 28,864.71/x
  3. Step 3: Cross multiply
    52,742.65x = 72,782.04 × 28,864.71
  4. Step 4: Simplify right side
    52,742.65x = 2,100,832,477.81
  5. Step 5: Solve for x
    x = 2,100,832,477.81/52,742.65
  6. Step 6: Final answer
    x = 39,831.76

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.