Home / 40,428.90-55,776.69-40,366.67

Finding the Fourth Proportional to 40,428.90, 55,776.69 and 40,366.67

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Solution

The fourth proportional to 40,428.90, 55,776.69 and 40,366.67 is: 55,690.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,428.90 : 55,776.69 = 40,366.67 : x
  2. Step 2: Convert to fraction form
    40,428.90/55,776.69 = 40,366.67/x
  3. Step 3: Cross multiply
    40,428.90x = 55,776.69 × 40,366.67
  4. Step 4: Simplify right side
    40,428.90x = 2,251,518,960.04
  5. Step 5: Solve for x
    x = 2,251,518,960.04/40,428.90
  6. Step 6: Final answer
    x = 55,690.83

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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.