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Finding the Fourth Proportional to 90,753.86, 136,130.93 and 35,349.86

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Solution

The fourth proportional to 90,753.86, 136,130.93 and 35,349.86 is: 53,024.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,753.86 : 136,130.93 = 35,349.86 : x
  2. Step 2: Convert to fraction form
    90,753.86/136,130.93 = 35,349.86/x
  3. Step 3: Cross multiply
    90,753.86x = 136,130.93 × 35,349.86
  4. Step 4: Simplify right side
    90,753.86x = 4,812,208,459.77
  5. Step 5: Solve for x
    x = 4,812,208,459.77/90,753.86
  6. Step 6: Final answer
    x = 53,024.84

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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.