Home / 45,545.85-68,311.02-12,258.50

Finding the Fourth Proportional to 45,545.85, 68,311.02 and 12,258.50

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Solution

The fourth proportional to 45,545.85, 68,311.02 and 12,258.50 is: 18,385.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,545.85 : 68,311.02 = 12,258.50 : x
  2. Step 2: Convert to fraction form
    45,545.85/68,311.02 = 12,258.50/x
  3. Step 3: Cross multiply
    45,545.85x = 68,311.02 × 12,258.50
  4. Step 4: Simplify right side
    45,545.85x = 837,390,297.11
  5. Step 5: Solve for x
    x = 837,390,297.11/45,545.85
  6. Step 6: Final answer
    x = 18,385.66

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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.