Home / 81,699.04-122,328.24-56,686.24

Finding the Fourth Proportional to 81,699.04, 122,328.24 and 56,686.24

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Solution

The fourth proportional to 81,699.04, 122,328.24 and 56,686.24 is: 84,876.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,699.04 : 122,328.24 = 56,686.24 : x
  2. Step 2: Convert to fraction form
    81,699.04/122,328.24 = 56,686.24/x
  3. Step 3: Cross multiply
    81,699.04x = 122,328.24 × 56,686.24
  4. Step 4: Simplify right side
    81,699.04x = 6,934,327,971.42
  5. Step 5: Solve for x
    x = 6,934,327,971.42/81,699.04
  6. Step 6: Final answer
    x = 84,876.49

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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.