Home / 90,867.52-136,319.51-34,707.79

Finding the Fourth Proportional to 90,867.52, 136,319.51 and 34,707.79

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Solution

The fourth proportional to 90,867.52, 136,319.51 and 34,707.79 is: 52,068.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,867.52 : 136,319.51 = 34,707.79 : x
  2. Step 2: Convert to fraction form
    90,867.52/136,319.51 = 34,707.79/x
  3. Step 3: Cross multiply
    90,867.52x = 136,319.51 × 34,707.79
  4. Step 4: Simplify right side
    90,867.52x = 4,731,348,925.98
  5. Step 5: Solve for x
    x = 4,731,348,925.98/90,867.52
  6. Step 6: Final answer
    x = 52,068.65

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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.