Home / 99,019.04-136,653.51-56,576.66

Finding the Fourth Proportional to 99,019.04, 136,653.51 and 56,576.66

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Solution

The fourth proportional to 99,019.04, 136,653.51 and 56,576.66 is: 78,079.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,019.04 : 136,653.51 = 56,576.66 : x
  2. Step 2: Convert to fraction form
    99,019.04/136,653.51 = 56,576.66/x
  3. Step 3: Cross multiply
    99,019.04x = 136,653.51 × 56,576.66
  4. Step 4: Simplify right side
    99,019.04x = 7,731,399,173.08
  5. Step 5: Solve for x
    x = 7,731,399,173.08/99,019.04
  6. Step 6: Final answer
    x = 78,079.92

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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.