Home / 42,840.66-64,259.36-11,250.42

Finding the Fourth Proportional to 42,840.66, 64,259.36 and 11,250.42

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Solution

The fourth proportional to 42,840.66, 64,259.36 and 11,250.42 is: 16,875.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,840.66 : 64,259.36 = 11,250.42 : x
  2. Step 2: Convert to fraction form
    42,840.66/64,259.36 = 11,250.42/x
  3. Step 3: Cross multiply
    42,840.66x = 64,259.36 × 11,250.42
  4. Step 4: Simplify right side
    42,840.66x = 722,944,788.93
  5. Step 5: Solve for x
    x = 722,944,788.93/42,840.66
  6. Step 6: Final answer
    x = 16,875.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.