Home / 90,495.08-124,880.14-54,678.76

Finding the Fourth Proportional to 90,495.08, 124,880.14 and 54,678.76

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Solution

The fourth proportional to 90,495.08, 124,880.14 and 54,678.76 is: 75,454.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,495.08 : 124,880.14 = 54,678.76 : x
  2. Step 2: Convert to fraction form
    90,495.08/124,880.14 = 54,678.76/x
  3. Step 3: Cross multiply
    90,495.08x = 124,880.14 × 54,678.76
  4. Step 4: Simplify right side
    90,495.08x = 6,828,291,203.83
  5. Step 5: Solve for x
    x = 6,828,291,203.83/90,495.08
  6. Step 6: Final answer
    x = 75,454.83

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.