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Finding the Fourth Proportional to 40,750.12, 61,124.84 and 12,670.12

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Solution

The fourth proportional to 40,750.12, 61,124.84 and 12,670.12 is: 19,005.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,750.12 : 61,124.84 = 12,670.12 : x
  2. Step 2: Convert to fraction form
    40,750.12/61,124.84 = 12,670.12/x
  3. Step 3: Cross multiply
    40,750.12x = 61,124.84 × 12,670.12
  4. Step 4: Simplify right side
    40,750.12x = 774,459,189.62
  5. Step 5: Solve for x
    x = 774,459,189.62/40,750.12
  6. Step 6: Final answer
    x = 19,005.08

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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.