Home / 53,986.70-74,469.56-42,031.10

Finding the Fourth Proportional to 53,986.70, 74,469.56 and 42,031.10

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Solution

The fourth proportional to 53,986.70, 74,469.56 and 42,031.10 is: 57,977.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,986.70 : 74,469.56 = 42,031.10 : x
  2. Step 2: Convert to fraction form
    53,986.70/74,469.56 = 42,031.10/x
  3. Step 3: Cross multiply
    53,986.70x = 74,469.56 × 42,031.10
  4. Step 4: Simplify right side
    53,986.70x = 3,130,037,523.32
  5. Step 5: Solve for x
    x = 3,130,037,523.32/53,986.70
  6. Step 6: Final answer
    x = 57,977.94

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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.