Home / 85,013.02-117,317.64-47,287.28

Finding the Fourth Proportional to 85,013.02, 117,317.64 and 47,287.28

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Solution

The fourth proportional to 85,013.02, 117,317.64 and 47,287.28 is: 65,256.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,013.02 : 117,317.64 = 47,287.28 : x
  2. Step 2: Convert to fraction form
    85,013.02/117,317.64 = 47,287.28/x
  3. Step 3: Cross multiply
    85,013.02x = 117,317.64 × 47,287.28
  4. Step 4: Simplify right side
    85,013.02x = 5,547,632,091.62
  5. Step 5: Solve for x
    x = 5,547,632,091.62/85,013.02
  6. Step 6: Final answer
    x = 65,256.26

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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.