Home / 85,590.04-128,391.54-23,259.64

Finding the Fourth Proportional to 85,590.04, 128,391.54 and 23,259.64

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Solution

The fourth proportional to 85,590.04, 128,391.54 and 23,259.64 is: 34,891.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,590.04 : 128,391.54 = 23,259.64 : x
  2. Step 2: Convert to fraction form
    85,590.04/128,391.54 = 23,259.64/x
  3. Step 3: Cross multiply
    85,590.04x = 128,391.54 × 23,259.64
  4. Step 4: Simplify right side
    85,590.04x = 2,986,340,999.45
  5. Step 5: Solve for x
    x = 2,986,340,999.45/85,590.04
  6. Step 6: Final answer
    x = 34,891.22

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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.