Home / 85,831.90-118,449.45-47,593.06

Finding the Fourth Proportional to 85,831.90, 118,449.45 and 47,593.06

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Solution

The fourth proportional to 85,831.90, 118,449.45 and 47,593.06 is: 65,679.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,831.90 : 118,449.45 = 47,593.06 : x
  2. Step 2: Convert to fraction form
    85,831.90/118,449.45 = 47,593.06/x
  3. Step 3: Cross multiply
    85,831.90x = 118,449.45 × 47,593.06
  4. Step 4: Simplify right side
    85,831.90x = 5,637,371,780.82
  5. Step 5: Solve for x
    x = 5,637,371,780.82/85,831.90
  6. Step 6: Final answer
    x = 65,679.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.