Home / 62,431.36-86,200.40-38,590.72

Finding the Fourth Proportional to 62,431.36, 86,200.40 and 38,590.72

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Solution

The fourth proportional to 62,431.36, 86,200.40 and 38,590.72 is: 53,283.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,431.36 : 86,200.40 = 38,590.72 : x
  2. Step 2: Convert to fraction form
    62,431.36/86,200.40 = 38,590.72/x
  3. Step 3: Cross multiply
    62,431.36x = 86,200.40 × 38,590.72
  4. Step 4: Simplify right side
    62,431.36x = 3,326,535,500.29
  5. Step 5: Solve for x
    x = 3,326,535,500.29/62,431.36
  6. Step 6: Final answer
    x = 53,283.09

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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.