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Finding the Fourth Proportional to 90,125.61, 135,197.58 and 30,953.58

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Solution

The fourth proportional to 90,125.61, 135,197.58 and 30,953.58 is: 46,433.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,125.61 : 135,197.58 = 30,953.58 : x
  2. Step 2: Convert to fraction form
    90,125.61/135,197.58 = 30,953.58/x
  3. Step 3: Cross multiply
    90,125.61x = 135,197.58 × 30,953.58
  4. Step 4: Simplify right side
    90,125.61x = 4,184,849,108.34
  5. Step 5: Solve for x
    x = 4,184,849,108.34/90,125.61
  6. Step 6: Final answer
    x = 46,433.52

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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.