Home / 82,985.30-124,602.18-47,486.68

Finding the Fourth Proportional to 82,985.30, 124,602.18 and 47,486.68

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Solution

The fourth proportional to 82,985.30, 124,602.18 and 47,486.68 is: 71,301.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,985.30 : 124,602.18 = 47,486.68 : x
  2. Step 2: Convert to fraction form
    82,985.30/124,602.18 = 47,486.68/x
  3. Step 3: Cross multiply
    82,985.30x = 124,602.18 × 47,486.68
  4. Step 4: Simplify right side
    82,985.30x = 5,916,943,848.96
  5. Step 5: Solve for x
    x = 5,916,943,848.96/82,985.30
  6. Step 6: Final answer
    x = 71,301.11

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.