Home / 55,389.89-76,437.65-30,239.39

Finding the Fourth Proportional to 55,389.89, 76,437.65 and 30,239.39

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Solution

The fourth proportional to 55,389.89, 76,437.65 and 30,239.39 is: 41,730.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,389.89 : 76,437.65 = 30,239.39 : x
  2. Step 2: Convert to fraction form
    55,389.89/76,437.65 = 30,239.39/x
  3. Step 3: Cross multiply
    55,389.89x = 76,437.65 × 30,239.39
  4. Step 4: Simplify right side
    55,389.89x = 2,311,427,602.44
  5. Step 5: Solve for x
    x = 2,311,427,602.44/55,389.89
  6. Step 6: Final answer
    x = 41,730.14

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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.