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Finding the Fourth Proportional to 57,061.77, 85,675.74 and 40,509.69

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Solution

The fourth proportional to 57,061.77, 85,675.74 and 40,509.69 is: 60,823.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,061.77 : 85,675.74 = 40,509.69 : x
  2. Step 2: Convert to fraction form
    57,061.77/85,675.74 = 40,509.69/x
  3. Step 3: Cross multiply
    57,061.77x = 85,675.74 × 40,509.69
  4. Step 4: Simplify right side
    57,061.77x = 3,470,697,667.92
  5. Step 5: Solve for x
    x = 3,470,697,667.92/57,061.77
  6. Step 6: Final answer
    x = 60,823.52

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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.