Home / 86,857.90-130,068.15-57,114.70

Finding the Fourth Proportional to 86,857.90, 130,068.15 and 57,114.70

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Solution

The fourth proportional to 86,857.90, 130,068.15 and 57,114.70 is: 85,528.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,857.90 : 130,068.15 = 57,114.70 : x
  2. Step 2: Convert to fraction form
    86,857.90/130,068.15 = 57,114.70/x
  3. Step 3: Cross multiply
    86,857.90x = 130,068.15 × 57,114.70
  4. Step 4: Simplify right side
    86,857.90x = 7,428,803,366.81
  5. Step 5: Solve for x
    x = 7,428,803,366.81/86,857.90
  6. Step 6: Final answer
    x = 85,528.24

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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.