Home / 42,640.10-58,847.57-31,866.26

Finding the Fourth Proportional to 42,640.10, 58,847.57 and 31,866.26

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Solution

The fourth proportional to 42,640.10, 58,847.57 and 31,866.26 is: 43,978.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,640.10 : 58,847.57 = 31,866.26 : x
  2. Step 2: Convert to fraction form
    42,640.10/58,847.57 = 31,866.26/x
  3. Step 3: Cross multiply
    42,640.10x = 58,847.57 × 31,866.26
  4. Step 4: Simplify right side
    42,640.10x = 1,875,251,965.99
  5. Step 5: Solve for x
    x = 1,875,251,965.99/42,640.10
  6. Step 6: Final answer
    x = 43,978.60

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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.