Home / 85,590.74-128,441.18-46,175.06

Finding the Fourth Proportional to 85,590.74, 128,441.18 and 46,175.06

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Solution

The fourth proportional to 85,590.74, 128,441.18 and 46,175.06 is: 69,292.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,590.74 : 128,441.18 = 46,175.06 : x
  2. Step 2: Convert to fraction form
    85,590.74/128,441.18 = 46,175.06/x
  3. Step 3: Cross multiply
    85,590.74x = 128,441.18 × 46,175.06
  4. Step 4: Simplify right side
    85,590.74x = 5,930,778,319.89
  5. Step 5: Solve for x
    x = 5,930,778,319.89/85,590.74
  6. Step 6: Final answer
    x = 69,292.29

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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.