Home / 53,722.16-80,582.88-20,890.16

Finding the Fourth Proportional to 53,722.16, 80,582.88 and 20,890.16

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Solution

The fourth proportional to 53,722.16, 80,582.88 and 20,890.16 is: 31,335.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,722.16 : 80,582.88 = 20,890.16 : x
  2. Step 2: Convert to fraction form
    53,722.16/80,582.88 = 20,890.16/x
  3. Step 3: Cross multiply
    53,722.16x = 80,582.88 × 20,890.16
  4. Step 4: Simplify right side
    53,722.16x = 1,683,389,256.46
  5. Step 5: Solve for x
    x = 1,683,389,256.46/53,722.16
  6. Step 6: Final answer
    x = 31,335.10

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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.