Home / 57,008.13-78,671.34-31,857.63

Finding the Fourth Proportional to 57,008.13, 78,671.34 and 31,857.63

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Solution

The fourth proportional to 57,008.13, 78,671.34 and 31,857.63 is: 43,963.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,008.13 : 78,671.34 = 31,857.63 : x
  2. Step 2: Convert to fraction form
    57,008.13/78,671.34 = 31,857.63/x
  3. Step 3: Cross multiply
    57,008.13x = 78,671.34 × 31,857.63
  4. Step 4: Simplify right side
    57,008.13x = 2,506,282,441.32
  5. Step 5: Solve for x
    x = 2,506,282,441.32/57,008.13
  6. Step 6: Final answer
    x = 43,963.60

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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.