Home / 83,603.32-115,258.66-59,688.40

Finding the Fourth Proportional to 83,603.32, 115,258.66 and 59,688.40

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Solution

The fourth proportional to 83,603.32, 115,258.66 and 59,688.40 is: 82,288.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,603.32 : 115,258.66 = 59,688.40 : x
  2. Step 2: Convert to fraction form
    83,603.32/115,258.66 = 59,688.40/x
  3. Step 3: Cross multiply
    83,603.32x = 115,258.66 × 59,688.40
  4. Step 4: Simplify right side
    83,603.32x = 6,879,605,001.54
  5. Step 5: Solve for x
    x = 6,879,605,001.54/83,603.32
  6. Step 6: Final answer
    x = 82,288.66

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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.