Home / 85,818.43-128,727.66-23,488.93

Finding the Fourth Proportional to 85,818.43, 128,727.66 and 23,488.93

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Solution

The fourth proportional to 85,818.43, 128,727.66 and 23,488.93 is: 35,233.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,818.43 : 128,727.66 = 23,488.93 : x
  2. Step 2: Convert to fraction form
    85,818.43/128,727.66 = 23,488.93/x
  3. Step 3: Cross multiply
    85,818.43x = 128,727.66 × 23,488.93
  4. Step 4: Simplify right side
    85,818.43x = 3,023,674,994.80
  5. Step 5: Solve for x
    x = 3,023,674,994.80/85,818.43
  6. Step 6: Final answer
    x = 35,233.40

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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.