Home / 86,900.10-130,399.47-46,918.56

Finding the Fourth Proportional to 86,900.10, 130,399.47 and 46,918.56

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Solution

The fourth proportional to 86,900.10, 130,399.47 and 46,918.56 is: 70,404.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,900.10 : 130,399.47 = 46,918.56 : x
  2. Step 2: Convert to fraction form
    86,900.10/130,399.47 = 46,918.56/x
  3. Step 3: Cross multiply
    86,900.10x = 130,399.47 × 46,918.56
  4. Step 4: Simplify right side
    86,900.10x = 6,118,154,705.17
  5. Step 5: Solve for x
    x = 6,118,154,705.17/86,900.10
  6. Step 6: Final answer
    x = 70,404.46

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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.