Home / 43,555.21-60,128.40-30,818.37

Finding the Fourth Proportional to 43,555.21, 60,128.40 and 30,818.37

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Solution

The fourth proportional to 43,555.21, 60,128.40 and 30,818.37 is: 42,545.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,555.21 : 60,128.40 = 30,818.37 : x
  2. Step 2: Convert to fraction form
    43,555.21/60,128.40 = 30,818.37/x
  3. Step 3: Cross multiply
    43,555.21x = 60,128.40 × 30,818.37
  4. Step 4: Simplify right side
    43,555.21x = 1,853,059,278.71
  5. Step 5: Solve for x
    x = 1,853,059,278.71/43,555.21
  6. Step 6: Final answer
    x = 42,545.07

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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.