Home / 70,915.19-97,866.09-40,701.78

Finding the Fourth Proportional to 70,915.19, 97,866.09 and 40,701.78

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Solution

The fourth proportional to 70,915.19, 97,866.09 and 40,701.78 is: 56,170.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,915.19 : 97,866.09 = 40,701.78 : x
  2. Step 2: Convert to fraction form
    70,915.19/97,866.09 = 40,701.78/x
  3. Step 3: Cross multiply
    70,915.19x = 97,866.09 × 40,701.78
  4. Step 4: Simplify right side
    70,915.19x = 3,983,324,064.64
  5. Step 5: Solve for x
    x = 3,983,324,064.64/70,915.19
  6. Step 6: Final answer
    x = 56,170.26

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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.