Home / 70,605.55-97,436.34-38,775.13

Finding the Fourth Proportional to 70,605.55, 97,436.34 and 38,775.13

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Solution

The fourth proportional to 70,605.55, 97,436.34 and 38,775.13 is: 53,510.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,605.55 : 97,436.34 = 38,775.13 : x
  2. Step 2: Convert to fraction form
    70,605.55/97,436.34 = 38,775.13/x
  3. Step 3: Cross multiply
    70,605.55x = 97,436.34 × 38,775.13
  4. Step 4: Simplify right side
    70,605.55x = 3,778,106,750.22
  5. Step 5: Solve for x
    x = 3,778,106,750.22/70,605.55
  6. Step 6: Final answer
    x = 53,510.05

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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.