Home / 85,962.46-128,945.28-29,804.40

Finding the Fourth Proportional to 85,962.46, 128,945.28 and 29,804.40

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Solution

The fourth proportional to 85,962.46, 128,945.28 and 29,804.40 is: 44,707.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,962.46 : 128,945.28 = 29,804.40 : x
  2. Step 2: Convert to fraction form
    85,962.46/128,945.28 = 29,804.40/x
  3. Step 3: Cross multiply
    85,962.46x = 128,945.28 × 29,804.40
  4. Step 4: Simplify right side
    85,962.46x = 3,843,135,983.99
  5. Step 5: Solve for x
    x = 3,843,135,983.99/85,962.46
  6. Step 6: Final answer
    x = 44,707.14

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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.