Home / 99,025.96-136,653.44-56,581.76

Finding the Fourth Proportional to 99,025.96, 136,653.44 and 56,581.76

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Solution

The fourth proportional to 99,025.96, 136,653.44 and 56,581.76 is: 78,081.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,025.96 : 136,653.44 = 56,581.76 : x
  2. Step 2: Convert to fraction form
    99,025.96/136,653.44 = 56,581.76/x
  3. Step 3: Cross multiply
    99,025.96x = 136,653.44 × 56,581.76
  4. Step 4: Simplify right side
    99,025.96x = 7,732,092,145.25
  5. Step 5: Solve for x
    x = 7,732,092,145.25/99,025.96
  6. Step 6: Final answer
    x = 78,081.47

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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.