Home / 99,629.01-137,490.59-56,607.08

Finding the Fourth Proportional to 99,629.01, 137,490.59 and 56,607.08

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Solution

The fourth proportional to 99,629.01, 137,490.59 and 56,607.08 is: 78,119.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,629.01 : 137,490.59 = 56,607.08 : x
  2. Step 2: Convert to fraction form
    99,629.01/137,490.59 = 56,607.08/x
  3. Step 3: Cross multiply
    99,629.01x = 137,490.59 × 56,607.08
  4. Step 4: Simplify right side
    99,629.01x = 7,782,940,281.44
  5. Step 5: Solve for x
    x = 7,782,940,281.44/99,629.01
  6. Step 6: Final answer
    x = 78,119.22

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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.