Home / 145,587.63-218,381.38-40,406.57

Finding the Fourth Proportional to 145,587.63, 218,381.38 and 40,406.57

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Solution

The fourth proportional to 145,587.63, 218,381.38 and 40,406.57 is: 60,609.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,587.63 : 218,381.38 = 40,406.57 : x
  2. Step 2: Convert to fraction form
    145,587.63/218,381.38 = 40,406.57/x
  3. Step 3: Cross multiply
    145,587.63x = 218,381.38 × 40,406.57
  4. Step 4: Simplify right side
    145,587.63x = 8,824,041,324.74
  5. Step 5: Solve for x
    x = 8,824,041,324.74/145,587.63
  6. Step 6: Final answer
    x = 60,609.83

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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.