Home / 70,436.32-97,192.74-40,219.72

Finding the Fourth Proportional to 70,436.32, 97,192.74 and 40,219.72

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Solution

The fourth proportional to 70,436.32, 97,192.74 and 40,219.72 is: 55,497.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,436.32 : 97,192.74 = 40,219.72 : x
  2. Step 2: Convert to fraction form
    70,436.32/97,192.74 = 40,219.72/x
  3. Step 3: Cross multiply
    70,436.32x = 97,192.74 × 40,219.72
  4. Step 4: Simplify right side
    70,436.32x = 3,909,064,788.83
  5. Step 5: Solve for x
    x = 3,909,064,788.83/70,436.32
  6. Step 6: Final answer
    x = 55,497.86

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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.