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Finding the Fourth Proportional to 67,764.76, 93,484.70 and 40,898.68

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Solution

The fourth proportional to 67,764.76, 93,484.70 and 40,898.68 is: 56,421.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,764.76 : 93,484.70 = 40,898.68 : x
  2. Step 2: Convert to fraction form
    67,764.76/93,484.70 = 40,898.68/x
  3. Step 3: Cross multiply
    67,764.76x = 93,484.70 × 40,898.68
  4. Step 4: Simplify right side
    67,764.76x = 3,823,400,545.36
  5. Step 5: Solve for x
    x = 3,823,400,545.36/67,764.76
  6. Step 6: Final answer
    x = 56,421.67

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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.