Home / 74,271.60-111,407.40-72,327.60

Finding the Fourth Proportional to 74,271.60, 111,407.40 and 72,327.60

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Solution

The fourth proportional to 74,271.60, 111,407.40 and 72,327.60 is: 108,491.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,271.60 : 111,407.40 = 72,327.60 : x
  2. Step 2: Convert to fraction form
    74,271.60/111,407.40 = 72,327.60/x
  3. Step 3: Cross multiply
    74,271.60x = 111,407.40 × 72,327.60
  4. Step 4: Simplify right side
    74,271.60x = 8,057,829,864.24
  5. Step 5: Solve for x
    x = 8,057,829,864.24/74,271.60
  6. Step 6: Final answer
    x = 108,491.40

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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.