Home / 70,914.90-97,835.13-40,689.30

Finding the Fourth Proportional to 70,914.90, 97,835.13 and 40,689.30

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Solution

The fourth proportional to 70,914.90, 97,835.13 and 40,689.30 is: 56,135.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,914.90 : 97,835.13 = 40,689.30 : x
  2. Step 2: Convert to fraction form
    70,914.90/97,835.13 = 40,689.30/x
  3. Step 3: Cross multiply
    70,914.90x = 97,835.13 × 40,689.30
  4. Step 4: Simplify right side
    70,914.90x = 3,980,842,955.11
  5. Step 5: Solve for x
    x = 3,980,842,955.11/70,914.90
  6. Step 6: Final answer
    x = 56,135.49

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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.