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Finding the Fourth Proportional to 90,880, 136,320.08 and 43,483.96

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Solution

The fourth proportional to 90,880, 136,320.08 and 43,483.96 is: 65,225.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,880 : 136,320.08 = 43,483.96 : x
  2. Step 2: Convert to fraction form
    90,880/136,320.08 = 43,483.96/x
  3. Step 3: Cross multiply
    90,880x = 136,320.08 × 43,483.96
  4. Step 4: Simplify right side
    90,880x = 5,927,736,905.92
  5. Step 5: Solve for x
    x = 5,927,736,905.92/90,880
  6. Step 6: Final answer
    x = 65,225.98

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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.