Home / 70,320.40-97,041.90-38,489.23

Finding the Fourth Proportional to 70,320.40, 97,041.90 and 38,489.23

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Solution

The fourth proportional to 70,320.40, 97,041.90 and 38,489.23 is: 53,114.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,320.40 : 97,041.90 = 38,489.23 : x
  2. Step 2: Convert to fraction form
    70,320.40/97,041.90 = 38,489.23/x
  3. Step 3: Cross multiply
    70,320.40x = 97,041.90 × 38,489.23
  4. Step 4: Simplify right side
    70,320.40x = 3,735,067,512.01
  5. Step 5: Solve for x
    x = 3,735,067,512.01/70,320.40
  6. Step 6: Final answer
    x = 53,114.99

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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.