Home / 93,413.57-128,877.03-71,909.89

Finding the Fourth Proportional to 93,413.57, 128,877.03 and 71,909.89

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Solution

The fourth proportional to 93,413.57, 128,877.03 and 71,909.89 is: 99,209.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,413.57 : 128,877.03 = 71,909.89 : x
  2. Step 2: Convert to fraction form
    93,413.57/128,877.03 = 71,909.89/x
  3. Step 3: Cross multiply
    93,413.57x = 128,877.03 × 71,909.89
  4. Step 4: Simplify right side
    93,413.57x = 9,267,532,728.63
  5. Step 5: Solve for x
    x = 9,267,532,728.63/93,413.57
  6. Step 6: Final answer
    x = 99,209.71

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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.