Home / 78,814.08-108,767.60-45,282.24

Finding the Fourth Proportional to 78,814.08, 108,767.60 and 45,282.24

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Solution

The fourth proportional to 78,814.08, 108,767.60 and 45,282.24 is: 62,491.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,814.08 : 108,767.60 = 45,282.24 : x
  2. Step 2: Convert to fraction form
    78,814.08/108,767.60 = 45,282.24/x
  3. Step 3: Cross multiply
    78,814.08x = 108,767.60 × 45,282.24
  4. Step 4: Simplify right side
    78,814.08x = 4,925,240,567.42
  5. Step 5: Solve for x
    x = 4,925,240,567.42/78,814.08
  6. Step 6: Final answer
    x = 62,491.89

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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.