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Finding the Fourth Proportional to 35,700.90, 53,500.05 and 20,085.54

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Solution

The fourth proportional to 35,700.90, 53,500.05 and 20,085.54 is: 30,099.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,700.90 : 53,500.05 = 20,085.54 : x
  2. Step 2: Convert to fraction form
    35,700.90/53,500.05 = 20,085.54/x
  3. Step 3: Cross multiply
    35,700.90x = 53,500.05 × 20,085.54
  4. Step 4: Simplify right side
    35,700.90x = 1,074,577,394.28
  5. Step 5: Solve for x
    x = 1,074,577,394.28/35,700.90
  6. Step 6: Final answer
    x = 30,099.45

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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.