Home / 90,115.48-135,159.04-56,733.35

Finding the Fourth Proportional to 90,115.48, 135,159.04 and 56,733.35

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Solution

The fourth proportional to 90,115.48, 135,159.04 and 56,733.35 is: 85,091.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,115.48 : 135,159.04 = 56,733.35 : x
  2. Step 2: Convert to fraction form
    90,115.48/135,159.04 = 56,733.35/x
  3. Step 3: Cross multiply
    90,115.48x = 135,159.04 × 56,733.35
  4. Step 4: Simplify right side
    90,115.48x = 7,668,024,838.32
  5. Step 5: Solve for x
    x = 7,668,024,838.32/90,115.48
  6. Step 6: Final answer
    x = 85,091.10

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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.