Home / 77,145.34-106,446.18-45,302.62

Finding the Fourth Proportional to 77,145.34, 106,446.18 and 45,302.62

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Solution

The fourth proportional to 77,145.34, 106,446.18 and 45,302.62 is: 62,509.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,145.34 : 106,446.18 = 45,302.62 : x
  2. Step 2: Convert to fraction form
    77,145.34/106,446.18 = 45,302.62/x
  3. Step 3: Cross multiply
    77,145.34x = 106,446.18 × 45,302.62
  4. Step 4: Simplify right side
    77,145.34x = 4,822,290,842.99
  5. Step 5: Solve for x
    x = 4,822,290,842.99/77,145.34
  6. Step 6: Final answer
    x = 62,509.17

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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.