Home / 76,810.12-115,136-29,412.26

Finding the Fourth Proportional to 76,810.12, 115,136 and 29,412.26

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Solution

The fourth proportional to 76,810.12, 115,136 and 29,412.26 is: 44,088.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,810.12 : 115,136 = 29,412.26 : x
  2. Step 2: Convert to fraction form
    76,810.12/115,136 = 29,412.26/x
  3. Step 3: Cross multiply
    76,810.12x = 115,136 × 29,412.26
  4. Step 4: Simplify right side
    76,810.12x = 3,386,409,967.36
  5. Step 5: Solve for x
    x = 3,386,409,967.36/76,810.12
  6. Step 6: Final answer
    x = 44,088.07

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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.