Home / 70,875.12-106,313.48-30,343.17

Finding the Fourth Proportional to 70,875.12, 106,313.48 and 30,343.17

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Solution

The fourth proportional to 70,875.12, 106,313.48 and 30,343.17 is: 45,515.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,875.12 : 106,313.48 = 30,343.17 : x
  2. Step 2: Convert to fraction form
    70,875.12/106,313.48 = 30,343.17/x
  3. Step 3: Cross multiply
    70,875.12x = 106,313.48 × 30,343.17
  4. Step 4: Simplify right side
    70,875.12x = 3,225,887,845.22
  5. Step 5: Solve for x
    x = 3,225,887,845.22/70,875.12
  6. Step 6: Final answer
    x = 45,515.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.