Home / 53,157-79,784.70-26,880.20

Finding the Fourth Proportional to 53,157, 79,784.70 and 26,880.20

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Solution

The fourth proportional to 53,157, 79,784.70 and 26,880.20 is: 40,345.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,157 : 79,784.70 = 26,880.20 : x
  2. Step 2: Convert to fraction form
    53,157/79,784.70 = 26,880.20/x
  3. Step 3: Cross multiply
    53,157x = 79,784.70 × 26,880.20
  4. Step 4: Simplify right side
    53,157x = 2,144,628,692.94
  5. Step 5: Solve for x
    x = 2,144,628,692.94/53,157
  6. Step 6: Final answer
    x = 40,345.18

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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.