Home / 90,753.86-136,158.47-46,411.76

Finding the Fourth Proportional to 90,753.86, 136,158.47 and 46,411.76

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Solution

The fourth proportional to 90,753.86, 136,158.47 and 46,411.76 is: 69,631.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,753.86 : 136,158.47 = 46,411.76 : x
  2. Step 2: Convert to fraction form
    90,753.86/136,158.47 = 46,411.76/x
  3. Step 3: Cross multiply
    90,753.86x = 136,158.47 × 46,411.76
  4. Step 4: Simplify right side
    90,753.86x = 6,319,353,318.76
  5. Step 5: Solve for x
    x = 6,319,353,318.76/90,753.86
  6. Step 6: Final answer
    x = 69,631.79

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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.