Home / 85,712.44-118,269.02-53,858.76

Finding the Fourth Proportional to 85,712.44, 118,269.02 and 53,858.76

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Solution

The fourth proportional to 85,712.44, 118,269.02 and 53,858.76 is: 74,316.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,712.44 : 118,269.02 = 53,858.76 : x
  2. Step 2: Convert to fraction form
    85,712.44/118,269.02 = 53,858.76/x
  3. Step 3: Cross multiply
    85,712.44x = 118,269.02 × 53,858.76
  4. Step 4: Simplify right side
    85,712.44x = 6,369,822,763.62
  5. Step 5: Solve for x
    x = 6,369,822,763.62/85,712.44
  6. Step 6: Final answer
    x = 74,316.20

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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.