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Finding the Fourth Proportional to 90,810.20, 136,096.84 and 56,601.84

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Solution

The fourth proportional to 90,810.20, 136,096.84 and 56,601.84 is: 84,828.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,810.20 : 136,096.84 = 56,601.84 : x
  2. Step 2: Convert to fraction form
    90,810.20/136,096.84 = 56,601.84/x
  3. Step 3: Cross multiply
    90,810.20x = 136,096.84 × 56,601.84
  4. Step 4: Simplify right side
    90,810.20x = 7,703,331,562.19
  5. Step 5: Solve for x
    x = 7,703,331,562.19/90,810.20
  6. Step 6: Final answer
    x = 84,828.92

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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.