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Finding the Fourth Proportional to 70,457.80, 97,232.56 and 40,247.12

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Solution

The fourth proportional to 70,457.80, 97,232.56 and 40,247.12 is: 55,541.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,457.80 : 97,232.56 = 40,247.12 : x
  2. Step 2: Convert to fraction form
    70,457.80/97,232.56 = 40,247.12/x
  3. Step 3: Cross multiply
    70,457.80x = 97,232.56 × 40,247.12
  4. Step 4: Simplify right side
    70,457.80x = 3,913,330,510.23
  5. Step 5: Solve for x
    x = 3,913,330,510.23/70,457.80
  6. Step 6: Final answer
    x = 55,541.48

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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.