Home / 43,139.58-64,362.85-38,403.35

Finding the Fourth Proportional to 43,139.58, 64,362.85 and 38,403.35

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Solution

The fourth proportional to 43,139.58, 64,362.85 and 38,403.35 is: 57,296.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,139.58 : 64,362.85 = 38,403.35 : x
  2. Step 2: Convert to fraction form
    43,139.58/64,362.85 = 38,403.35/x
  3. Step 3: Cross multiply
    43,139.58x = 64,362.85 × 38,403.35
  4. Step 4: Simplify right side
    43,139.58x = 2,471,749,055.55
  5. Step 5: Solve for x
    x = 2,471,749,055.55/43,139.58
  6. Step 6: Final answer
    x = 57,296.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.