Home / 99,050.28-136,688.57-53,728.15

Finding the Fourth Proportional to 99,050.28, 136,688.57 and 53,728.15

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Solution

The fourth proportional to 99,050.28, 136,688.57 and 53,728.15 is: 74,144.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,050.28 : 136,688.57 = 53,728.15 : x
  2. Step 2: Convert to fraction form
    99,050.28/136,688.57 = 53,728.15/x
  3. Step 3: Cross multiply
    99,050.28x = 136,688.57 × 53,728.15
  4. Step 4: Simplify right side
    99,050.28x = 7,344,023,992.25
  5. Step 5: Solve for x
    x = 7,344,023,992.25/99,050.28
  6. Step 6: Final answer
    x = 74,144.40

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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.