Home / 76,313.37-105,312.76-42,325.03

Finding the Fourth Proportional to 76,313.37, 105,312.76 and 42,325.03

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Solution

The fourth proportional to 76,313.37, 105,312.76 and 42,325.03 is: 58,408.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,313.37 : 105,312.76 = 42,325.03 : x
  2. Step 2: Convert to fraction form
    76,313.37/105,312.76 = 42,325.03/x
  3. Step 3: Cross multiply
    76,313.37x = 105,312.76 × 42,325.03
  4. Step 4: Simplify right side
    76,313.37x = 4,457,365,752.21
  5. Step 5: Solve for x
    x = 4,457,365,752.21/76,313.37
  6. Step 6: Final answer
    x = 58,408.71

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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.