Home / 99,031.49-136,663.53-53,709.46

Finding the Fourth Proportional to 99,031.49, 136,663.53 and 53,709.46

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Solution

The fourth proportional to 99,031.49, 136,663.53 and 53,709.46 is: 74,119.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,031.49 : 136,663.53 = 53,709.46 : x
  2. Step 2: Convert to fraction form
    99,031.49/136,663.53 = 53,709.46/x
  3. Step 3: Cross multiply
    99,031.49x = 136,663.53 × 53,709.46
  4. Step 4: Simplify right side
    99,031.49x = 7,340,124,397.99
  5. Step 5: Solve for x
    x = 7,340,124,397.99/99,031.49
  6. Step 6: Final answer
    x = 74,119.09

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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.