Home / 51,590.40-77,152.32-39,742.08

Finding the Fourth Proportional to 51,590.40, 77,152.32 and 39,742.08

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Solution

The fourth proportional to 51,590.40, 77,152.32 and 39,742.08 is: 59,433.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,590.40 : 77,152.32 = 39,742.08 : x
  2. Step 2: Convert to fraction form
    51,590.40/77,152.32 = 39,742.08/x
  3. Step 3: Cross multiply
    51,590.40x = 77,152.32 × 39,742.08
  4. Step 4: Simplify right side
    51,590.40x = 3,066,193,673.63
  5. Step 5: Solve for x
    x = 3,066,193,673.63/51,590.40
  6. Step 6: Final answer
    x = 59,433.42

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.