Home / 72,360.48-99,859.41-40,528.68

Finding the Fourth Proportional to 72,360.48, 99,859.41 and 40,528.68

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Solution

The fourth proportional to 72,360.48, 99,859.41 and 40,528.68 is: 55,930.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,360.48 : 99,859.41 = 40,528.68 : x
  2. Step 2: Convert to fraction form
    72,360.48/99,859.41 = 40,528.68/x
  3. Step 3: Cross multiply
    72,360.48x = 99,859.41 × 40,528.68
  4. Step 4: Simplify right side
    72,360.48x = 4,047,170,072.88
  5. Step 5: Solve for x
    x = 4,047,170,072.88/72,360.48
  6. Step 6: Final answer
    x = 55,930.67

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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.