Home / 70,389.47-97,137.63-38,558.50

Finding the Fourth Proportional to 70,389.47, 97,137.63 and 38,558.50

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Solution

The fourth proportional to 70,389.47, 97,137.63 and 38,558.50 is: 53,210.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,389.47 : 97,137.63 = 38,558.50 : x
  2. Step 2: Convert to fraction form
    70,389.47/97,137.63 = 38,558.50/x
  3. Step 3: Cross multiply
    70,389.47x = 97,137.63 × 38,558.50
  4. Step 4: Simplify right side
    70,389.47x = 3,745,481,063.51
  5. Step 5: Solve for x
    x = 3,745,481,063.51/70,389.47
  6. Step 6: Final answer
    x = 53,210.81

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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.