Home / 53,990.42-74,466.60-39,645.74

Finding the Fourth Proportional to 53,990.42, 74,466.60 and 39,645.74

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Solution

The fourth proportional to 53,990.42, 74,466.60 and 39,645.74 is: 54,681.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,990.42 : 74,466.60 = 39,645.74 : x
  2. Step 2: Convert to fraction form
    53,990.42/74,466.60 = 39,645.74/x
  3. Step 3: Cross multiply
    53,990.42x = 74,466.60 × 39,645.74
  4. Step 4: Simplify right side
    53,990.42x = 2,952,283,462.28
  5. Step 5: Solve for x
    x = 2,952,283,462.28/53,990.42
  6. Step 6: Final answer
    x = 54,681.62

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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.