Home / 81,461.09-112,384.23-50,816.35

Finding the Fourth Proportional to 81,461.09, 112,384.23 and 50,816.35

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Solution

The fourth proportional to 81,461.09, 112,384.23 and 50,816.35 is: 70,106.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,461.09 : 112,384.23 = 50,816.35 : x
  2. Step 2: Convert to fraction form
    81,461.09/112,384.23 = 50,816.35/x
  3. Step 3: Cross multiply
    81,461.09x = 112,384.23 × 50,816.35
  4. Step 4: Simplify right side
    81,461.09x = 5,710,956,295.92
  5. Step 5: Solve for x
    x = 5,710,956,295.92/81,461.09
  6. Step 6: Final answer
    x = 70,106.55

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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.