Home / 70,941.16-97,899.56-39,111.20

Finding the Fourth Proportional to 70,941.16, 97,899.56 and 39,111.20

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Solution

The fourth proportional to 70,941.16, 97,899.56 and 39,111.20 is: 53,973.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,941.16 : 97,899.56 = 39,111.20 : x
  2. Step 2: Convert to fraction form
    70,941.16/97,899.56 = 39,111.20/x
  3. Step 3: Cross multiply
    70,941.16x = 97,899.56 × 39,111.20
  4. Step 4: Simplify right side
    70,941.16x = 3,828,968,586.02
  5. Step 5: Solve for x
    x = 3,828,968,586.02/70,941.16
  6. Step 6: Final answer
    x = 53,973.87

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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.