Home / 86,970.49-120,017.53-48,729.58

Finding the Fourth Proportional to 86,970.49, 120,017.53 and 48,729.58

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Solution

The fourth proportional to 86,970.49, 120,017.53 and 48,729.58 is: 67,245.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,970.49 : 120,017.53 = 48,729.58 : x
  2. Step 2: Convert to fraction form
    86,970.49/120,017.53 = 48,729.58/x
  3. Step 3: Cross multiply
    86,970.49x = 120,017.53 × 48,729.58
  4. Step 4: Simplify right side
    86,970.49x = 5,848,403,590.41
  5. Step 5: Solve for x
    x = 5,848,403,590.41/86,970.49
  6. Step 6: Final answer
    x = 67,245.84

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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.