Home / 73,845.12-101,910.08-42,018.60

Finding the Fourth Proportional to 73,845.12, 101,910.08 and 42,018.60

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Solution

The fourth proportional to 73,845.12, 101,910.08 and 42,018.60 is: 57,987.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,845.12 : 101,910.08 = 42,018.60 : x
  2. Step 2: Convert to fraction form
    73,845.12/101,910.08 = 42,018.60/x
  3. Step 3: Cross multiply
    73,845.12x = 101,910.08 × 42,018.60
  4. Step 4: Simplify right side
    73,845.12x = 4,282,118,887.49
  5. Step 5: Solve for x
    x = 4,282,118,887.49/73,845.12
  6. Step 6: Final answer
    x = 57,987.84

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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.