Home / 82,389.30-113,611.65-70,492.02

Finding the Fourth Proportional to 82,389.30, 113,611.65 and 70,492.02

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Solution

The fourth proportional to 82,389.30, 113,611.65 and 70,492.02 is: 97,205.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,389.30 : 113,611.65 = 70,492.02 : x
  2. Step 2: Convert to fraction form
    82,389.30/113,611.65 = 70,492.02/x
  3. Step 3: Cross multiply
    82,389.30x = 113,611.65 × 70,492.02
  4. Step 4: Simplify right side
    82,389.30x = 8,008,714,704.03
  5. Step 5: Solve for x
    x = 8,008,714,704.03/82,389.30
  6. Step 6: Final answer
    x = 97,205.76

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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.