Home / 91,779.19-126,655.58-53,565.01

Finding the Fourth Proportional to 91,779.19, 126,655.58 and 53,565.01

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Solution

The fourth proportional to 91,779.19, 126,655.58 and 53,565.01 is: 73,919.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,779.19 : 126,655.58 = 53,565.01 : x
  2. Step 2: Convert to fraction form
    91,779.19/126,655.58 = 53,565.01/x
  3. Step 3: Cross multiply
    91,779.19x = 126,655.58 × 53,565.01
  4. Step 4: Simplify right side
    91,779.19x = 6,784,307,226.53
  5. Step 5: Solve for x
    x = 6,784,307,226.53/91,779.19
  6. Step 6: Final answer
    x = 73,919.89

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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.