Home / 42,785.87-64,187.36-13,202.59

Finding the Fourth Proportional to 42,785.87, 64,187.36 and 13,202.59

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Solution

The fourth proportional to 42,785.87, 64,187.36 and 13,202.59 is: 19,806.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,785.87 : 64,187.36 = 13,202.59 : x
  2. Step 2: Convert to fraction form
    42,785.87/64,187.36 = 13,202.59/x
  3. Step 3: Cross multiply
    42,785.87x = 64,187.36 × 13,202.59
  4. Step 4: Simplify right side
    42,785.87x = 847,439,397.26
  5. Step 5: Solve for x
    x = 847,439,397.26/42,785.87
  6. Step 6: Final answer
    x = 19,806.52

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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.