Home / 99,057.72-136,666.44-56,586.20

Finding the Fourth Proportional to 99,057.72, 136,666.44 and 56,586.20

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Solution

The fourth proportional to 99,057.72, 136,666.44 and 56,586.20 is: 78,069.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,057.72 : 136,666.44 = 56,586.20 : x
  2. Step 2: Convert to fraction form
    99,057.72/136,666.44 = 56,586.20/x
  3. Step 3: Cross multiply
    99,057.72x = 136,666.44 × 56,586.20
  4. Step 4: Simplify right side
    99,057.72x = 7,733,434,507.13
  5. Step 5: Solve for x
    x = 7,733,434,507.13/99,057.72
  6. Step 6: Final answer
    x = 78,069.98

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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.