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Finding the Fourth Proportional to 35,306.90, 53,152.71 and 30,485.78

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Solution

The fourth proportional to 35,306.90, 53,152.71 and 30,485.78 is: 45,894.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,306.90 : 53,152.71 = 30,485.78 : x
  2. Step 2: Convert to fraction form
    35,306.90/53,152.71 = 30,485.78/x
  3. Step 3: Cross multiply
    35,306.90x = 53,152.71 × 30,485.78
  4. Step 4: Simplify right side
    35,306.90x = 1,620,401,823.46
  5. Step 5: Solve for x
    x = 1,620,401,823.46/35,306.90
  6. Step 6: Final answer
    x = 45,894.76

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These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.