Home / 70,376.60-97,121.27-40,161.32

Finding the Fourth Proportional to 70,376.60, 97,121.27 and 40,161.32

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Solution

The fourth proportional to 70,376.60, 97,121.27 and 40,161.32 is: 55,423.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,376.60 : 97,121.27 = 40,161.32 : x
  2. Step 2: Convert to fraction form
    70,376.60/97,121.27 = 40,161.32/x
  3. Step 3: Cross multiply
    70,376.60x = 97,121.27 × 40,161.32
  4. Step 4: Simplify right side
    70,376.60x = 3,900,518,018.07
  5. Step 5: Solve for x
    x = 3,900,518,018.07/70,376.60
  6. Step 6: Final answer
    x = 55,423.51

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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.