Home / 53,915.61-74,403.55-31,267.74

Finding the Fourth Proportional to 53,915.61, 74,403.55 and 31,267.74

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Solution

The fourth proportional to 53,915.61, 74,403.55 and 31,267.74 is: 43,149.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,915.61 : 74,403.55 = 31,267.74 : x
  2. Step 2: Convert to fraction form
    53,915.61/74,403.55 = 31,267.74/x
  3. Step 3: Cross multiply
    53,915.61x = 74,403.55 × 31,267.74
  4. Step 4: Simplify right side
    53,915.61x = 2,326,431,174.57
  5. Step 5: Solve for x
    x = 2,326,431,174.57/53,915.61
  6. Step 6: Final answer
    x = 43,149.49

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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.