Home / 70,344.02-105,526.43-20,417.65

Finding the Fourth Proportional to 70,344.02, 105,526.43 and 20,417.65

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Solution

The fourth proportional to 70,344.02, 105,526.43 and 20,417.65 is: 30,629.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,344.02 : 105,526.43 = 20,417.65 : x
  2. Step 2: Convert to fraction form
    70,344.02/105,526.43 = 20,417.65/x
  3. Step 3: Cross multiply
    70,344.02x = 105,526.43 × 20,417.65
  4. Step 4: Simplify right side
    70,344.02x = 2,154,601,713.49
  5. Step 5: Solve for x
    x = 2,154,601,713.49/70,344.02
  6. Step 6: Final answer
    x = 30,629.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.