Home / 42,777.12-64,170.96-14,702.88

Finding the Fourth Proportional to 42,777.12, 64,170.96 and 14,702.88

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Solution

The fourth proportional to 42,777.12, 64,170.96 and 14,702.88 is: 22,056.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,777.12 : 64,170.96 = 14,702.88 : x
  2. Step 2: Convert to fraction form
    42,777.12/64,170.96 = 14,702.88/x
  3. Step 3: Cross multiply
    42,777.12x = 64,170.96 × 14,702.88
  4. Step 4: Simplify right side
    42,777.12x = 943,497,924.36
  5. Step 5: Solve for x
    x = 943,497,924.36/42,777.12
  6. Step 6: Final answer
    x = 22,056.13

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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.