Home / 70,686.40-97,545.61-38,420.26

Finding the Fourth Proportional to 70,686.40, 97,545.61 and 38,420.26

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Solution

The fourth proportional to 70,686.40, 97,545.61 and 38,420.26 is: 53,019.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,686.40 : 97,545.61 = 38,420.26 : x
  2. Step 2: Convert to fraction form
    70,686.40/97,545.61 = 38,420.26/x
  3. Step 3: Cross multiply
    70,686.40x = 97,545.61 × 38,420.26
  4. Step 4: Simplify right side
    70,686.40x = 3,747,727,698.06
  5. Step 5: Solve for x
    x = 3,747,727,698.06/70,686.40
  6. Step 6: Final answer
    x = 53,019.08

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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.