Home / 99,779.36-137,698.35-54,460.22

Finding the Fourth Proportional to 99,779.36, 137,698.35 and 54,460.22

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Solution

The fourth proportional to 99,779.36, 137,698.35 and 54,460.22 is: 75,156.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,779.36 : 137,698.35 = 54,460.22 : x
  2. Step 2: Convert to fraction form
    99,779.36/137,698.35 = 54,460.22/x
  3. Step 3: Cross multiply
    99,779.36x = 137,698.35 × 54,460.22
  4. Step 4: Simplify right side
    99,779.36x = 7,499,082,434.64
  5. Step 5: Solve for x
    x = 7,499,082,434.64/99,779.36
  6. Step 6: Final answer
    x = 75,156.65

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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.