Home / 66,966.12-92,416.14-40,113

Finding the Fourth Proportional to 66,966.12, 92,416.14 and 40,113

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Solution

The fourth proportional to 66,966.12, 92,416.14 and 40,113 is: 55,357.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,966.12 : 92,416.14 = 40,113 : x
  2. Step 2: Convert to fraction form
    66,966.12/92,416.14 = 40,113/x
  3. Step 3: Cross multiply
    66,966.12x = 92,416.14 × 40,113
  4. Step 4: Simplify right side
    66,966.12x = 3,707,088,623.82
  5. Step 5: Solve for x
    x = 3,707,088,623.82/66,966.12
  6. Step 6: Final answer
    x = 55,357.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.