Home / 76,313.63-105,318.12-42,325.22

Finding the Fourth Proportional to 76,313.63, 105,318.12 and 42,325.22

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Solution

The fourth proportional to 76,313.63, 105,318.12 and 42,325.22 is: 58,411.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,313.63 : 105,318.12 = 42,325.22 : x
  2. Step 2: Convert to fraction form
    76,313.63/105,318.12 = 42,325.22/x
  3. Step 3: Cross multiply
    76,313.63x = 105,318.12 × 42,325.22
  4. Step 4: Simplify right side
    76,313.63x = 4,457,612,598.99
  5. Step 5: Solve for x
    x = 4,457,612,598.99/76,313.63
  6. Step 6: Final answer
    x = 58,411.75

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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.