Home / 56,431.62-77,834.25-40,532.40

Finding the Fourth Proportional to 56,431.62, 77,834.25 and 40,532.40

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Solution

The fourth proportional to 56,431.62, 77,834.25 and 40,532.40 is: 55,904.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,431.62 : 77,834.25 = 40,532.40 : x
  2. Step 2: Convert to fraction form
    56,431.62/77,834.25 = 40,532.40/x
  3. Step 3: Cross multiply
    56,431.62x = 77,834.25 × 40,532.40
  4. Step 4: Simplify right side
    56,431.62x = 3,154,808,954.70
  5. Step 5: Solve for x
    x = 3,154,808,954.70/56,431.62
  6. Step 6: Final answer
    x = 55,904.99

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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.