Home / 76,923.35-106,159.55-42,938.45

Finding the Fourth Proportional to 76,923.35, 106,159.55 and 42,938.45

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Solution

The fourth proportional to 76,923.35, 106,159.55 and 42,938.45 is: 59,258.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,923.35 : 106,159.55 = 42,938.45 : x
  2. Step 2: Convert to fraction form
    76,923.35/106,159.55 = 42,938.45/x
  3. Step 3: Cross multiply
    76,923.35x = 106,159.55 × 42,938.45
  4. Step 4: Simplify right side
    76,923.35x = 4,558,325,784.21
  5. Step 5: Solve for x
    x = 4,558,325,784.21/76,923.35
  6. Step 6: Final answer
    x = 59,258.03

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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.