Home / 86,929.08-130,437.36-64,786.92

Finding the Fourth Proportional to 86,929.08, 130,437.36 and 64,786.92

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Solution

The fourth proportional to 86,929.08, 130,437.36 and 64,786.92 is: 97,212.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,929.08 : 130,437.36 = 64,786.92 : x
  2. Step 2: Convert to fraction form
    86,929.08/130,437.36 = 64,786.92/x
  3. Step 3: Cross multiply
    86,929.08x = 130,437.36 × 64,786.92
  4. Step 4: Simplify right side
    86,929.08x = 8,450,634,807.33
  5. Step 5: Solve for x
    x = 8,450,634,807.33/86,929.08
  6. Step 6: Final answer
    x = 97,212.98

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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.