Home / 86,497.40-129,746.10-56,948.60

Finding the Fourth Proportional to 86,497.40, 129,746.10 and 56,948.60

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Solution

The fourth proportional to 86,497.40, 129,746.10 and 56,948.60 is: 85,422.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,497.40 : 129,746.10 = 56,948.60 : x
  2. Step 2: Convert to fraction form
    86,497.40/129,746.10 = 56,948.60/x
  3. Step 3: Cross multiply
    86,497.40x = 129,746.10 × 56,948.60
  4. Step 4: Simplify right side
    86,497.40x = 7,388,858,750.46
  5. Step 5: Solve for x
    x = 7,388,858,750.46/86,497.40
  6. Step 6: Final answer
    x = 85,422.90

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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.