Home / 72,488.28-100,011.96-45,657.36

Finding the Fourth Proportional to 72,488.28, 100,011.96 and 45,657.36

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Solution

The fourth proportional to 72,488.28, 100,011.96 and 45,657.36 is: 62,993.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,488.28 : 100,011.96 = 45,657.36 : x
  2. Step 2: Convert to fraction form
    72,488.28/100,011.96 = 45,657.36/x
  3. Step 3: Cross multiply
    72,488.28x = 100,011.96 × 45,657.36
  4. Step 4: Simplify right side
    72,488.28x = 4,566,282,062.03
  5. Step 5: Solve for x
    x = 4,566,282,062.03/72,488.28
  6. Step 6: Final answer
    x = 62,993.38

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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.