Home / 82,875.70-124,313.55-30,278.35

Finding the Fourth Proportional to 82,875.70, 124,313.55 and 30,278.35

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Solution

The fourth proportional to 82,875.70, 124,313.55 and 30,278.35 is: 45,417.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,875.70 : 124,313.55 = 30,278.35 : x
  2. Step 2: Convert to fraction form
    82,875.70/124,313.55 = 30,278.35/x
  3. Step 3: Cross multiply
    82,875.70x = 124,313.55 × 30,278.35
  4. Step 4: Simplify right side
    82,875.70x = 3,764,009,176.64
  5. Step 5: Solve for x
    x = 3,764,009,176.64/82,875.70
  6. Step 6: Final answer
    x = 45,417.53

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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.