Home / 89,080.16-133,434.32-53,428.42

Finding the Fourth Proportional to 89,080.16, 133,434.32 and 53,428.42

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Solution

The fourth proportional to 89,080.16, 133,434.32 and 53,428.42 is: 80,031.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,080.16 : 133,434.32 = 53,428.42 : x
  2. Step 2: Convert to fraction form
    89,080.16/133,434.32 = 53,428.42/x
  3. Step 3: Cross multiply
    89,080.16x = 133,434.32 × 53,428.42
  4. Step 4: Simplify right side
    89,080.16x = 7,129,184,340.99
  5. Step 5: Solve for x
    x = 7,129,184,340.99/89,080.16
  6. Step 6: Final answer
    x = 80,031.11

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1.5x scale

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.