Home / 57,141.63-78,675.02-50,331.40

Finding the Fourth Proportional to 57,141.63, 78,675.02 and 50,331.40

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Solution

The fourth proportional to 57,141.63, 78,675.02 and 50,331.40 is: 69,298.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,141.63 : 78,675.02 = 50,331.40 : x
  2. Step 2: Convert to fraction form
    57,141.63/78,675.02 = 50,331.40/x
  3. Step 3: Cross multiply
    57,141.63x = 78,675.02 × 50,331.40
  4. Step 4: Simplify right side
    57,141.63x = 3,959,823,830.77
  5. Step 5: Solve for x
    x = 3,959,823,830.77/57,141.63
  6. Step 6: Final answer
    x = 69,298.41

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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.