Home / 90,743.04-136,129.08-31,595.52

Finding the Fourth Proportional to 90,743.04, 136,129.08 and 31,595.52

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Solution

The fourth proportional to 90,743.04, 136,129.08 and 31,595.52 is: 47,398.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,743.04 : 136,129.08 = 31,595.52 : x
  2. Step 2: Convert to fraction form
    90,743.04/136,129.08 = 31,595.52/x
  3. Step 3: Cross multiply
    90,743.04x = 136,129.08 × 31,595.52
  4. Step 4: Simplify right side
    90,743.04x = 4,301,069,069.72
  5. Step 5: Solve for x
    x = 4,301,069,069.72/90,743.04
  6. Step 6: Final answer
    x = 47,398.34

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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.