Home / 75,031.75-103,545.74-45,225.67

Finding the Fourth Proportional to 75,031.75, 103,545.74 and 45,225.67

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Solution

The fourth proportional to 75,031.75, 103,545.74 and 45,225.67 is: 62,412.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,031.75 : 103,545.74 = 45,225.67 : x
  2. Step 2: Convert to fraction form
    75,031.75/103,545.74 = 45,225.67/x
  3. Step 3: Cross multiply
    75,031.75x = 103,545.74 × 45,225.67
  4. Step 4: Simplify right side
    75,031.75x = 4,682,925,467.15
  5. Step 5: Solve for x
    x = 4,682,925,467.15/75,031.75
  6. Step 6: Final answer
    x = 62,412.58

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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.