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Finding the Fourth Proportional to 100,487.29, 150,533.88 and 58,278.72

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Solution

The fourth proportional to 100,487.29, 150,533.88 and 58,278.72 is: 87,303.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,487.29 : 150,533.88 = 58,278.72 : x
  2. Step 2: Convert to fraction form
    100,487.29/150,533.88 = 58,278.72/x
  3. Step 3: Cross multiply
    100,487.29x = 150,533.88 × 58,278.72
  4. Step 4: Simplify right side
    100,487.29x = 8,772,922,309.37
  5. Step 5: Solve for x
    x = 8,772,922,309.37/100,487.29
  6. Step 6: Final answer
    x = 87,303.80

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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.