Home / 85,710.36-118,266.24-53,856.72

Finding the Fourth Proportional to 85,710.36, 118,266.24 and 53,856.72

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Solution

The fourth proportional to 85,710.36, 118,266.24 and 53,856.72 is: 74,313.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,710.36 : 118,266.24 = 53,856.72 : x
  2. Step 2: Convert to fraction form
    85,710.36/118,266.24 = 53,856.72/x
  3. Step 3: Cross multiply
    85,710.36x = 118,266.24 × 53,856.72
  4. Step 4: Simplify right side
    85,710.36x = 6,369,431,773.13
  5. Step 5: Solve for x
    x = 6,369,431,773.13/85,710.36
  6. Step 6: Final answer
    x = 74,313.44

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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.