Home / 56,900.12-78,503.40-36,768.84

Finding the Fourth Proportional to 56,900.12, 78,503.40 and 36,768.84

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Solution

The fourth proportional to 56,900.12, 78,503.40 and 36,768.84 is: 50,728.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,900.12 : 78,503.40 = 36,768.84 : x
  2. Step 2: Convert to fraction form
    56,900.12/78,503.40 = 36,768.84/x
  3. Step 3: Cross multiply
    56,900.12x = 78,503.40 × 36,768.84
  4. Step 4: Simplify right side
    56,900.12x = 2,886,478,954.06
  5. Step 5: Solve for x
    x = 2,886,478,954.06/56,900.12
  6. Step 6: Final answer
    x = 50,728.87

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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.