Home / 53,290.84-79,811.74-42,122.60

Finding the Fourth Proportional to 53,290.84, 79,811.74 and 42,122.60

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Solution

The fourth proportional to 53,290.84, 79,811.74 and 42,122.60 is: 63,085.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,290.84 : 79,811.74 = 42,122.60 : x
  2. Step 2: Convert to fraction form
    53,290.84/79,811.74 = 42,122.60/x
  3. Step 3: Cross multiply
    53,290.84x = 79,811.74 × 42,122.60
  4. Step 4: Simplify right side
    53,290.84x = 3,361,877,999.32
  5. Step 5: Solve for x
    x = 3,361,877,999.32/53,290.84
  6. Step 6: Final answer
    x = 63,085.48

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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.