Home / 74,127.37-102,294.55-40,135.59

Finding the Fourth Proportional to 74,127.37, 102,294.55 and 40,135.59

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Solution

The fourth proportional to 74,127.37, 102,294.55 and 40,135.59 is: 55,386.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,127.37 : 102,294.55 = 40,135.59 : x
  2. Step 2: Convert to fraction form
    74,127.37/102,294.55 = 40,135.59/x
  3. Step 3: Cross multiply
    74,127.37x = 102,294.55 × 40,135.59
  4. Step 4: Simplify right side
    74,127.37x = 4,105,652,118.03
  5. Step 5: Solve for x
    x = 4,105,652,118.03/74,127.37
  6. Step 6: Final answer
    x = 55,386.45

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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.