Home / 81,068.34-111,842.13-54,168.24

Finding the Fourth Proportional to 81,068.34, 111,842.13 and 54,168.24

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Solution

The fourth proportional to 81,068.34, 111,842.13 and 54,168.24 is: 74,730.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,068.34 : 111,842.13 = 54,168.24 : x
  2. Step 2: Convert to fraction form
    81,068.34/111,842.13 = 54,168.24/x
  3. Step 3: Cross multiply
    81,068.34x = 111,842.13 × 54,168.24
  4. Step 4: Simplify right side
    81,068.34x = 6,058,291,962.49
  5. Step 5: Solve for x
    x = 6,058,291,962.49/81,068.34
  6. Step 6: Final answer
    x = 74,730.67

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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.