Home / 351,985.04-527,971.28-85,744.92

Finding the Fourth Proportional to 351,985.04, 527,971.28 and 85,744.92

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Solution

The fourth proportional to 351,985.04, 527,971.28 and 85,744.92 is: 128,615.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,985.04 : 527,971.28 = 85,744.92 : x
  2. Step 2: Convert to fraction form
    351,985.04/527,971.28 = 85,744.92/x
  3. Step 3: Cross multiply
    351,985.04x = 527,971.28 × 85,744.92
  4. Step 4: Simplify right side
    351,985.04x = 45,270,854,737.17
  5. Step 5: Solve for x
    x = 45,270,854,737.17/351,985.04
  6. Step 6: Final answer
    x = 128,615.85

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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.