Home / 42,445.60-63,668.40-40,805.35

Finding the Fourth Proportional to 42,445.60, 63,668.40 and 40,805.35

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Solution

The fourth proportional to 42,445.60, 63,668.40 and 40,805.35 is: 61,208.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,445.60 : 63,668.40 = 40,805.35 : x
  2. Step 2: Convert to fraction form
    42,445.60/63,668.40 = 40,805.35/x
  3. Step 3: Cross multiply
    42,445.60x = 63,668.40 × 40,805.35
  4. Step 4: Simplify right side
    42,445.60x = 2,598,011,345.94
  5. Step 5: Solve for x
    x = 2,598,011,345.94/42,445.60
  6. Step 6: Final answer
    x = 61,208.03

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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.