Home / 72,267.45-99,733.46-40,435.67

Finding the Fourth Proportional to 72,267.45, 99,733.46 and 40,435.67

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Solution

The fourth proportional to 72,267.45, 99,733.46 and 40,435.67 is: 55,803.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,267.45 : 99,733.46 = 40,435.67 : x
  2. Step 2: Convert to fraction form
    72,267.45/99,733.46 = 40,435.67/x
  3. Step 3: Cross multiply
    72,267.45x = 99,733.46 × 40,435.67
  4. Step 4: Simplify right side
    72,267.45x = 4,032,788,575.67
  5. Step 5: Solve for x
    x = 4,032,788,575.67/72,267.45
  6. Step 6: Final answer
    x = 55,803.67

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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.