Home / 72,681.28-100,271.67-53,606.83

Finding the Fourth Proportional to 72,681.28, 100,271.67 and 53,606.83

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Solution

The fourth proportional to 72,681.28, 100,271.67 and 53,606.83 is: 73,956.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,681.28 : 100,271.67 = 53,606.83 : x
  2. Step 2: Convert to fraction form
    72,681.28/100,271.67 = 53,606.83/x
  3. Step 3: Cross multiply
    72,681.28x = 100,271.67 × 53,606.83
  4. Step 4: Simplify right side
    72,681.28x = 5,375,246,367.51
  5. Step 5: Solve for x
    x = 5,375,246,367.51/72,681.28
  6. Step 6: Final answer
    x = 73,956.41

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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.