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Finding the Fourth Proportional to 77,413.30, 116,119.95 and 57,730.30

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Solution

The fourth proportional to 77,413.30, 116,119.95 and 57,730.30 is: 86,595.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,413.30 : 116,119.95 = 57,730.30 : x
  2. Step 2: Convert to fraction form
    77,413.30/116,119.95 = 57,730.30/x
  3. Step 3: Cross multiply
    77,413.30x = 116,119.95 × 57,730.30
  4. Step 4: Simplify right side
    77,413.30x = 6,703,639,549.49
  5. Step 5: Solve for x
    x = 6,703,639,549.49/77,413.30
  6. Step 6: Final answer
    x = 86,595.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.