Home / 70,621.46-97,457.55-38,790.08

Finding the Fourth Proportional to 70,621.46, 97,457.55 and 38,790.08

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Solution

The fourth proportional to 70,621.46, 97,457.55 and 38,790.08 is: 53,530.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,621.46 : 97,457.55 = 38,790.08 : x
  2. Step 2: Convert to fraction form
    70,621.46/97,457.55 = 38,790.08/x
  3. Step 3: Cross multiply
    70,621.46x = 97,457.55 × 38,790.08
  4. Step 4: Simplify right side
    70,621.46x = 3,780,386,161.10
  5. Step 5: Solve for x
    x = 3,780,386,161.10/70,621.46
  6. Step 6: Final answer
    x = 53,530.27

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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.