Home / 53,919.38-74,407.74-29,390.39

Finding the Fourth Proportional to 53,919.38, 74,407.74 and 29,390.39

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Solution

The fourth proportional to 53,919.38, 74,407.74 and 29,390.39 is: 40,558.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,919.38 : 74,407.74 = 29,390.39 : x
  2. Step 2: Convert to fraction form
    53,919.38/74,407.74 = 29,390.39/x
  3. Step 3: Cross multiply
    53,919.38x = 74,407.74 × 29,390.39
  4. Step 4: Simplify right side
    53,919.38x = 2,186,871,978.63
  5. Step 5: Solve for x
    x = 2,186,871,978.63/53,919.38
  6. Step 6: Final answer
    x = 40,558.18

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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.