Home / 84,527.64-126,707.27-42,278.81

Finding the Fourth Proportional to 84,527.64, 126,707.27 and 42,278.81

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Solution

The fourth proportional to 84,527.64, 126,707.27 and 42,278.81 is: 63,376.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,527.64 : 126,707.27 = 42,278.81 : x
  2. Step 2: Convert to fraction form
    84,527.64/126,707.27 = 42,278.81/x
  3. Step 3: Cross multiply
    84,527.64x = 126,707.27 × 42,278.81
  4. Step 4: Simplify right side
    84,527.64x = 5,357,031,749.02
  5. Step 5: Solve for x
    x = 5,357,031,749.02/84,527.64
  6. Step 6: Final answer
    x = 63,376.10

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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.