Home / 74,911.20-112,439.60-58,450.40

Finding the Fourth Proportional to 74,911.20, 112,439.60 and 58,450.40

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Solution

The fourth proportional to 74,911.20, 112,439.60 and 58,450.40 is: 87,732.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,911.20 : 112,439.60 = 58,450.40 : x
  2. Step 2: Convert to fraction form
    74,911.20/112,439.60 = 58,450.40/x
  3. Step 3: Cross multiply
    74,911.20x = 112,439.60 × 58,450.40
  4. Step 4: Simplify right side
    74,911.20x = 6,572,139,595.84
  5. Step 5: Solve for x
    x = 6,572,139,595.84/74,911.20
  6. Step 6: Final answer
    x = 87,732.40

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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.