Home / 99,609.53-137,454.47-56,598.08

Finding the Fourth Proportional to 99,609.53, 137,454.47 and 56,598.08

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Solution

The fourth proportional to 99,609.53, 137,454.47 and 56,598.08 is: 78,101.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,609.53 : 137,454.47 = 56,598.08 : x
  2. Step 2: Convert to fraction form
    99,609.53/137,454.47 = 56,598.08/x
  3. Step 3: Cross multiply
    99,609.53x = 137,454.47 × 56,598.08
  4. Step 4: Simplify right side
    99,609.53x = 7,779,658,119.15
  5. Step 5: Solve for x
    x = 7,779,658,119.15/99,609.53
  6. Step 6: Final answer
    x = 78,101.54

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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.