Home / 72,281.22-99,729.12-41,646.81

Finding the Fourth Proportional to 72,281.22, 99,729.12 and 41,646.81

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Solution

The fourth proportional to 72,281.22, 99,729.12 and 41,646.81 is: 57,461.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,281.22 : 99,729.12 = 41,646.81 : x
  2. Step 2: Convert to fraction form
    72,281.22/99,729.12 = 41,646.81/x
  3. Step 3: Cross multiply
    72,281.22x = 99,729.12 × 41,646.81
  4. Step 4: Simplify right side
    72,281.22x = 4,153,399,712.11
  5. Step 5: Solve for x
    x = 4,153,399,712.11/72,281.22
  6. Step 6: Final answer
    x = 57,461.67

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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.