Home / 57,055.20-78,730.12-31,557.51

Finding the Fourth Proportional to 57,055.20, 78,730.12 and 31,557.51

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Solution

The fourth proportional to 57,055.20, 78,730.12 and 31,557.51 is: 43,546.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,055.20 : 78,730.12 = 31,557.51 : x
  2. Step 2: Convert to fraction form
    57,055.20/78,730.12 = 31,557.51/x
  3. Step 3: Cross multiply
    57,055.20x = 78,730.12 × 31,557.51
  4. Step 4: Simplify right side
    57,055.20x = 2,484,526,549.20
  5. Step 5: Solve for x
    x = 2,484,526,549.20/57,055.20
  6. Step 6: Final answer
    x = 43,546.01

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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.