Home / 53,987.41-74,462.47-39,642.74

Finding the Fourth Proportional to 53,987.41, 74,462.47 and 39,642.74

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Solution

The fourth proportional to 53,987.41, 74,462.47 and 39,642.74 is: 54,677.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,987.41 : 74,462.47 = 39,642.74 : x
  2. Step 2: Convert to fraction form
    53,987.41/74,462.47 = 39,642.74/x
  3. Step 3: Cross multiply
    53,987.41x = 74,462.47 × 39,642.74
  4. Step 4: Simplify right side
    53,987.41x = 2,951,896,145.78
  5. Step 5: Solve for x
    x = 2,951,896,145.78/53,987.41
  6. Step 6: Final answer
    x = 54,677.49

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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.