Home / 74,022.98-102,154.37-42,186.74

Finding the Fourth Proportional to 74,022.98, 102,154.37 and 42,186.74

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Solution

The fourth proportional to 74,022.98, 102,154.37 and 42,186.74 is: 58,219.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,022.98 : 102,154.37 = 42,186.74 : x
  2. Step 2: Convert to fraction form
    74,022.98/102,154.37 = 42,186.74/x
  3. Step 3: Cross multiply
    74,022.98x = 102,154.37 × 42,186.74
  4. Step 4: Simplify right side
    74,022.98x = 4,309,559,125.35
  5. Step 5: Solve for x
    x = 4,309,559,125.35/74,022.98
  6. Step 6: Final answer
    x = 58,219.21

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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.