Home / 86,047.19-128,925.15-52,697.60

Finding the Fourth Proportional to 86,047.19, 128,925.15 and 52,697.60

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Solution

The fourth proportional to 86,047.19, 128,925.15 and 52,697.60 is: 78,957.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,047.19 : 128,925.15 = 52,697.60 : x
  2. Step 2: Convert to fraction form
    86,047.19/128,925.15 = 52,697.60/x
  3. Step 3: Cross multiply
    86,047.19x = 128,925.15 × 52,697.60
  4. Step 4: Simplify right side
    86,047.19x = 6,794,046,647.50
  5. Step 5: Solve for x
    x = 6,794,046,647.50/86,047.19
  6. Step 6: Final answer
    x = 78,957.21

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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.