Home / 81,017.04-111,803.31-45,206.67

Finding the Fourth Proportional to 81,017.04, 111,803.31 and 45,206.67

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Solution

The fourth proportional to 81,017.04, 111,803.31 and 45,206.67 is: 62,385.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,017.04 : 111,803.31 = 45,206.67 : x
  2. Step 2: Convert to fraction form
    81,017.04/111,803.31 = 45,206.67/x
  3. Step 3: Cross multiply
    81,017.04x = 111,803.31 × 45,206.67
  4. Step 4: Simplify right side
    81,017.04x = 5,054,255,340.08
  5. Step 5: Solve for x
    x = 5,054,255,340.08/81,017.04
  6. Step 6: Final answer
    x = 62,385.09

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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.