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Finding the Fourth Proportional to 85,601.16, 128,151.90 and 49,953.24

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Solution

The fourth proportional to 85,601.16, 128,151.90 and 49,953.24 is: 74,784.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,601.16 : 128,151.90 = 49,953.24 : x
  2. Step 2: Convert to fraction form
    85,601.16/128,151.90 = 49,953.24/x
  3. Step 3: Cross multiply
    85,601.16x = 128,151.90 × 49,953.24
  4. Step 4: Simplify right side
    85,601.16x = 6,401,602,617.16
  5. Step 5: Solve for x
    x = 6,401,602,617.16/85,601.16
  6. Step 6: Final answer
    x = 74,784.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.