Home / 70,630.49-97,476.93-40,420.12

Finding the Fourth Proportional to 70,630.49, 97,476.93 and 40,420.12

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Solution

The fourth proportional to 70,630.49, 97,476.93 and 40,420.12 is: 55,783.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,630.49 : 97,476.93 = 40,420.12 : x
  2. Step 2: Convert to fraction form
    70,630.49/97,476.93 = 40,420.12/x
  3. Step 3: Cross multiply
    70,630.49x = 97,476.93 × 40,420.12
  4. Step 4: Simplify right side
    70,630.49x = 3,940,029,207.83
  5. Step 5: Solve for x
    x = 3,940,029,207.83/70,630.49
  6. Step 6: Final answer
    x = 55,783.69

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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.