Home / 261,300.24-391,950.05-71,762.67

Finding the Fourth Proportional to 261,300.24, 391,950.05 and 71,762.67

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Solution

The fourth proportional to 261,300.24, 391,950.05 and 71,762.67 is: 107,643.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,300.24 : 391,950.05 = 71,762.67 : x
  2. Step 2: Convert to fraction form
    261,300.24/391,950.05 = 71,762.67/x
  3. Step 3: Cross multiply
    261,300.24x = 391,950.05 × 71,762.67
  4. Step 4: Simplify right side
    261,300.24x = 28,127,381,735.82
  5. Step 5: Solve for x
    x = 28,127,381,735.82/261,300.24
  6. Step 6: Final answer
    x = 107,643.92

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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.