Home / 53,885.76-74,366.40-31,230.72

Finding the Fourth Proportional to 53,885.76, 74,366.40 and 31,230.72

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Solution

The fourth proportional to 53,885.76, 74,366.40 and 31,230.72 is: 43,100.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,885.76 : 74,366.40 = 31,230.72 : x
  2. Step 2: Convert to fraction form
    53,885.76/74,366.40 = 31,230.72/x
  3. Step 3: Cross multiply
    53,885.76x = 74,366.40 × 31,230.72
  4. Step 4: Simplify right side
    53,885.76x = 2,322,516,215.81
  5. Step 5: Solve for x
    x = 2,322,516,215.81/53,885.76
  6. Step 6: Final answer
    x = 43,100.74

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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.