Home / 99,057.48-136,666.08-56,585.94

Finding the Fourth Proportional to 99,057.48, 136,666.08 and 56,585.94

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Solution

The fourth proportional to 99,057.48, 136,666.08 and 56,585.94 is: 78,069.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,057.48 : 136,666.08 = 56,585.94 : x
  2. Step 2: Convert to fraction form
    99,057.48/136,666.08 = 56,585.94/x
  3. Step 3: Cross multiply
    99,057.48x = 136,666.08 × 56,585.94
  4. Step 4: Simplify right side
    99,057.48x = 7,733,378,602.92
  5. Step 5: Solve for x
    x = 7,733,378,602.92/99,057.48
  6. Step 6: Final answer
    x = 78,069.61

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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.