Home / 90,063.45-134,908.34-52,509.63

Finding the Fourth Proportional to 90,063.45, 134,908.34 and 52,509.63

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Solution

The fourth proportional to 90,063.45, 134,908.34 and 52,509.63 is: 78,655.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,063.45 : 134,908.34 = 52,509.63 : x
  2. Step 2: Convert to fraction form
    90,063.45/134,908.34 = 52,509.63/x
  3. Step 3: Cross multiply
    90,063.45x = 134,908.34 × 52,509.63
  4. Step 4: Simplify right side
    90,063.45x = 7,083,986,754.77
  5. Step 5: Solve for x
    x = 7,083,986,754.77/90,063.45
  6. Step 6: Final answer
    x = 78,655.51

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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.