Home / 99,065.04-136,719.36-56,615.46

Finding the Fourth Proportional to 99,065.04, 136,719.36 and 56,615.46

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Solution

The fourth proportional to 99,065.04, 136,719.36 and 56,615.46 is: 78,134.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,065.04 : 136,719.36 = 56,615.46 : x
  2. Step 2: Convert to fraction form
    99,065.04/136,719.36 = 56,615.46/x
  3. Step 3: Cross multiply
    99,065.04x = 136,719.36 × 56,615.46
  4. Step 4: Simplify right side
    99,065.04x = 7,740,429,457.31
  5. Step 5: Solve for x
    x = 7,740,429,457.31/99,065.04
  6. Step 6: Final answer
    x = 78,134.82

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.