Home / 57,055.44-78,740.12-31,905.04

Finding the Fourth Proportional to 57,055.44, 78,740.12 and 31,905.04

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Solution

The fourth proportional to 57,055.44, 78,740.12 and 31,905.04 is: 44,030.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,055.44 : 78,740.12 = 31,905.04 : x
  2. Step 2: Convert to fraction form
    57,055.44/78,740.12 = 31,905.04/x
  3. Step 3: Cross multiply
    57,055.44x = 78,740.12 × 31,905.04
  4. Step 4: Simplify right side
    57,055.44x = 2,512,206,678.20
  5. Step 5: Solve for x
    x = 2,512,206,678.20/57,055.44
  6. Step 6: Final answer
    x = 44,030.98

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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.