Home / 57,208.42-85,837.32-30,931.72

Finding the Fourth Proportional to 57,208.42, 85,837.32 and 30,931.72

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Solution

The fourth proportional to 57,208.42, 85,837.32 and 30,931.72 is: 46,410.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,208.42 : 85,837.32 = 30,931.72 : x
  2. Step 2: Convert to fraction form
    57,208.42/85,837.32 = 30,931.72/x
  3. Step 3: Cross multiply
    57,208.42x = 85,837.32 × 30,931.72
  4. Step 4: Simplify right side
    57,208.42x = 2,655,095,947.79
  5. Step 5: Solve for x
    x = 2,655,095,947.79/57,208.42
  6. Step 6: Final answer
    x = 46,410.93

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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.