Home / 85,567.29-128,354.58-26,401.65

Finding the Fourth Proportional to 85,567.29, 128,354.58 and 26,401.65

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Solution

The fourth proportional to 85,567.29, 128,354.58 and 26,401.65 is: 39,603.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,567.29 : 128,354.58 = 26,401.65 : x
  2. Step 2: Convert to fraction form
    85,567.29/128,354.58 = 26,401.65/x
  3. Step 3: Cross multiply
    85,567.29x = 128,354.58 × 26,401.65
  4. Step 4: Simplify right side
    85,567.29x = 3,388,772,697.06
  5. Step 5: Solve for x
    x = 3,388,772,697.06/85,567.29
  6. Step 6: Final answer
    x = 39,603.60

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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.