Home / 56,389.18-77,810.79-31,232.38

Finding the Fourth Proportional to 56,389.18, 77,810.79 and 31,232.38

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Solution

The fourth proportional to 56,389.18, 77,810.79 and 31,232.38 is: 43,097.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,389.18 : 77,810.79 = 31,232.38 : x
  2. Step 2: Convert to fraction form
    56,389.18/77,810.79 = 31,232.38/x
  3. Step 3: Cross multiply
    56,389.18x = 77,810.79 × 31,232.38
  4. Step 4: Simplify right side
    56,389.18x = 2,430,216,161.38
  5. Step 5: Solve for x
    x = 2,430,216,161.38/56,389.18
  6. Step 6: Final answer
    x = 43,097.21

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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.