Home / 85,146.02-117,501.44-49,356.76

Finding the Fourth Proportional to 85,146.02, 117,501.44 and 49,356.76

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Solution

The fourth proportional to 85,146.02, 117,501.44 and 49,356.76 is: 68,112.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,146.02 : 117,501.44 = 49,356.76 : x
  2. Step 2: Convert to fraction form
    85,146.02/117,501.44 = 49,356.76/x
  3. Step 3: Cross multiply
    85,146.02x = 117,501.44 × 49,356.76
  4. Step 4: Simplify right side
    85,146.02x = 5,799,490,373.73
  5. Step 5: Solve for x
    x = 5,799,490,373.73/85,146.02
  6. Step 6: Final answer
    x = 68,112.29

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Double scale
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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.