Home / 55,877.40-77,109.66-30,384.27

Finding the Fourth Proportional to 55,877.40, 77,109.66 and 30,384.27

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Solution

The fourth proportional to 55,877.40, 77,109.66 and 30,384.27 is: 41,929.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,877.40 : 77,109.66 = 30,384.27 : x
  2. Step 2: Convert to fraction form
    55,877.40/77,109.66 = 30,384.27/x
  3. Step 3: Cross multiply
    55,877.40x = 77,109.66 × 30,384.27
  4. Step 4: Simplify right side
    55,877.40x = 2,342,920,729.05
  5. Step 5: Solve for x
    x = 2,342,920,729.05/55,877.40
  6. Step 6: Final answer
    x = 41,929.67

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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.