Home / 72,010.65-99,261.45-49,310.34

Finding the Fourth Proportional to 72,010.65, 99,261.45 and 49,310.34

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Solution

The fourth proportional to 72,010.65, 99,261.45 and 49,310.34 is: 67,970.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,010.65 : 99,261.45 = 49,310.34 : x
  2. Step 2: Convert to fraction form
    72,010.65/99,261.45 = 49,310.34/x
  3. Step 3: Cross multiply
    72,010.65x = 99,261.45 × 49,310.34
  4. Step 4: Simplify right side
    72,010.65x = 4,894,615,848.39
  5. Step 5: Solve for x
    x = 4,894,615,848.39/72,010.65
  6. Step 6: Final answer
    x = 67,970.72

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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.