Home / 57,090.02-78,782.27-31,597.45

Finding the Fourth Proportional to 57,090.02, 78,782.27 and 31,597.45

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Solution

The fourth proportional to 57,090.02, 78,782.27 and 31,597.45 is: 43,603.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,090.02 : 78,782.27 = 31,597.45 : x
  2. Step 2: Convert to fraction form
    57,090.02/78,782.27 = 31,597.45/x
  3. Step 3: Cross multiply
    57,090.02x = 78,782.27 × 31,597.45
  4. Step 4: Simplify right side
    57,090.02x = 2,489,318,837.21
  5. Step 5: Solve for x
    x = 2,489,318,837.21/57,090.02
  6. Step 6: Final answer
    x = 43,603.40

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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.