Home / 55,389.74-76,435.18-31,514.18

Finding the Fourth Proportional to 55,389.74, 76,435.18 and 31,514.18

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Solution

The fourth proportional to 55,389.74, 76,435.18 and 31,514.18 is: 43,488.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,389.74 : 76,435.18 = 31,514.18 : x
  2. Step 2: Convert to fraction form
    55,389.74/76,435.18 = 31,514.18/x
  3. Step 3: Cross multiply
    55,389.74x = 76,435.18 × 31,514.18
  4. Step 4: Simplify right side
    55,389.74x = 2,408,791,559.89
  5. Step 5: Solve for x
    x = 2,408,791,559.89/55,389.74
  6. Step 6: Final answer
    x = 43,488.05

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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.