Home / 70,518.16-97,315.80-38,686.24

Finding the Fourth Proportional to 70,518.16, 97,315.80 and 38,686.24

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Solution

The fourth proportional to 70,518.16, 97,315.80 and 38,686.24 is: 53,387.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,518.16 : 97,315.80 = 38,686.24 : x
  2. Step 2: Convert to fraction form
    70,518.16/97,315.80 = 38,686.24/x
  3. Step 3: Cross multiply
    70,518.16x = 97,315.80 × 38,686.24
  4. Step 4: Simplify right side
    70,518.16x = 3,764,782,394.59
  5. Step 5: Solve for x
    x = 3,764,782,394.59/70,518.16
  6. Step 6: Final answer
    x = 53,387.42

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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.