Home / 53,728.92-74,140.26-31,064.40

Finding the Fourth Proportional to 53,728.92, 74,140.26 and 31,064.40

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Solution

The fourth proportional to 53,728.92, 74,140.26 and 31,064.40 is: 42,865.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,728.92 : 74,140.26 = 31,064.40 : x
  2. Step 2: Convert to fraction form
    53,728.92/74,140.26 = 31,064.40/x
  3. Step 3: Cross multiply
    53,728.92x = 74,140.26 × 31,064.40
  4. Step 4: Simplify right side
    53,728.92x = 2,303,122,692.74
  5. Step 5: Solve for x
    x = 2,303,122,692.74/53,728.92
  6. Step 6: Final answer
    x = 42,865.61

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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.