Home / 85,971.51-118,635.36-47,728.83

Finding the Fourth Proportional to 85,971.51, 118,635.36 and 47,728.83

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Solution

The fourth proportional to 85,971.51, 118,635.36 and 47,728.83 is: 65,862.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,971.51 : 118,635.36 = 47,728.83 : x
  2. Step 2: Convert to fraction form
    85,971.51/118,635.36 = 47,728.83/x
  3. Step 3: Cross multiply
    85,971.51x = 118,635.36 × 47,728.83
  4. Step 4: Simplify right side
    85,971.51x = 5,662,326,929.43
  5. Step 5: Solve for x
    x = 5,662,326,929.43/85,971.51
  6. Step 6: Final answer
    x = 65,862.83

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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.