Home / 42,777.60-64,170.02-15,767.32

Finding the Fourth Proportional to 42,777.60, 64,170.02 and 15,767.32

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Solution

The fourth proportional to 42,777.60, 64,170.02 and 15,767.32 is: 23,652.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,777.60 : 64,170.02 = 15,767.32 : x
  2. Step 2: Convert to fraction form
    42,777.60/64,170.02 = 15,767.32/x
  3. Step 3: Cross multiply
    42,777.60x = 64,170.02 × 15,767.32
  4. Step 4: Simplify right side
    42,777.60x = 1,011,789,239.75
  5. Step 5: Solve for x
    x = 1,011,789,239.75/42,777.60
  6. Step 6: Final answer
    x = 23,652.31

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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.