Home / 54,999.42-75,899.16-31,125.66

Finding the Fourth Proportional to 54,999.42, 75,899.16 and 31,125.66

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Solution

The fourth proportional to 54,999.42, 75,899.16 and 31,125.66 is: 42,953.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,999.42 : 75,899.16 = 31,125.66 : x
  2. Step 2: Convert to fraction form
    54,999.42/75,899.16 = 31,125.66/x
  3. Step 3: Cross multiply
    54,999.42x = 75,899.16 × 31,125.66
  4. Step 4: Simplify right side
    54,999.42x = 2,362,411,448.45
  5. Step 5: Solve for x
    x = 2,362,411,448.45/54,999.42
  6. Step 6: Final answer
    x = 42,953.39

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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.