Home / 85,972.75-118,637.03-47,730.06

Finding the Fourth Proportional to 85,972.75, 118,637.03 and 47,730.06

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Solution

The fourth proportional to 85,972.75, 118,637.03 and 47,730.06 is: 65,864.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,972.75 : 118,637.03 = 47,730.06 : x
  2. Step 2: Convert to fraction form
    85,972.75/118,637.03 = 47,730.06/x
  3. Step 3: Cross multiply
    85,972.75x = 118,637.03 × 47,730.06
  4. Step 4: Simplify right side
    85,972.75x = 5,662,552,679.45
  5. Step 5: Solve for x
    x = 5,662,552,679.45/85,972.75
  6. Step 6: Final answer
    x = 65,864.51

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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.