Home / 53,742.84-74,164.80-29,871.72

Finding the Fourth Proportional to 53,742.84, 74,164.80 and 29,871.72

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Solution

The fourth proportional to 53,742.84, 74,164.80 and 29,871.72 is: 41,222.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,742.84 : 74,164.80 = 29,871.72 : x
  2. Step 2: Convert to fraction form
    53,742.84/74,164.80 = 29,871.72/x
  3. Step 3: Cross multiply
    53,742.84x = 74,164.80 × 29,871.72
  4. Step 4: Simplify right side
    53,742.84x = 2,215,430,139.46
  5. Step 5: Solve for x
    x = 2,215,430,139.46/53,742.84
  6. Step 6: Final answer
    x = 41,222.80

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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.