Home / 64,178.64-88,529.40-38,667.60

Finding the Fourth Proportional to 64,178.64, 88,529.40 and 38,667.60

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Solution

The fourth proportional to 64,178.64, 88,529.40 and 38,667.60 is: 53,338.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,178.64 : 88,529.40 = 38,667.60 : x
  2. Step 2: Convert to fraction form
    64,178.64/88,529.40 = 38,667.60/x
  3. Step 3: Cross multiply
    64,178.64x = 88,529.40 × 38,667.60
  4. Step 4: Simplify right side
    64,178.64x = 3,423,219,427.44
  5. Step 5: Solve for x
    x = 3,423,219,427.44/64,178.64
  6. Step 6: Final answer
    x = 53,338.92

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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.