Home / 85,603.77-128,372.58-29,433.24

Finding the Fourth Proportional to 85,603.77, 128,372.58 and 29,433.24

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Solution

The fourth proportional to 85,603.77, 128,372.58 and 29,433.24 is: 44,138.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,603.77 : 128,372.58 = 29,433.24 : x
  2. Step 2: Convert to fraction form
    85,603.77/128,372.58 = 29,433.24/x
  3. Step 3: Cross multiply
    85,603.77x = 128,372.58 × 29,433.24
  4. Step 4: Simplify right side
    85,603.77x = 3,778,420,956.56
  5. Step 5: Solve for x
    x = 3,778,420,956.56/85,603.77
  6. Step 6: Final answer
    x = 44,138.49

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1.5x scale

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.