Home / 57,312.02-79,090.90-31,818.72

Finding the Fourth Proportional to 57,312.02, 79,090.90 and 31,818.72

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Solution

The fourth proportional to 57,312.02, 79,090.90 and 31,818.72 is: 43,910.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,312.02 : 79,090.90 = 31,818.72 : x
  2. Step 2: Convert to fraction form
    57,312.02/79,090.90 = 31,818.72/x
  3. Step 3: Cross multiply
    57,312.02x = 79,090.90 × 31,818.72
  4. Step 4: Simplify right side
    57,312.02x = 2,516,571,201.65
  5. Step 5: Solve for x
    x = 2,516,571,201.65/57,312.02
  6. Step 6: Final answer
    x = 43,910.01

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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.