Home / 85,518.09-118,001.73-47,785.05

Finding the Fourth Proportional to 85,518.09, 118,001.73 and 47,785.05

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Solution

The fourth proportional to 85,518.09, 118,001.73 and 47,785.05 is: 65,935.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,518.09 : 118,001.73 = 47,785.05 : x
  2. Step 2: Convert to fraction form
    85,518.09/118,001.73 = 47,785.05/x
  3. Step 3: Cross multiply
    85,518.09x = 118,001.73 × 47,785.05
  4. Step 4: Simplify right side
    85,518.09x = 5,638,718,568.14
  5. Step 5: Solve for x
    x = 5,638,718,568.14/85,518.09
  6. Step 6: Final answer
    x = 65,935.97

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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.