Home / 90,970.04-136,427.52-31,794.68

Finding the Fourth Proportional to 90,970.04, 136,427.52 and 31,794.68

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Solution

The fourth proportional to 90,970.04, 136,427.52 and 31,794.68 is: 47,682.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,970.04 : 136,427.52 = 31,794.68 : x
  2. Step 2: Convert to fraction form
    90,970.04/136,427.52 = 31,794.68/x
  3. Step 3: Cross multiply
    90,970.04x = 136,427.52 × 31,794.68
  4. Step 4: Simplify right side
    90,970.04x = 4,337,669,341.59
  5. Step 5: Solve for x
    x = 4,337,669,341.59/90,970.04
  6. Step 6: Final answer
    x = 47,682.39

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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.