Home / 76,688.07-105,802.13-44,405.06

Finding the Fourth Proportional to 76,688.07, 105,802.13 and 44,405.06

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Solution

The fourth proportional to 76,688.07, 105,802.13 and 44,405.06 is: 61,263.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,688.07 : 105,802.13 = 44,405.06 : x
  2. Step 2: Convert to fraction form
    76,688.07/105,802.13 = 44,405.06/x
  3. Step 3: Cross multiply
    76,688.07x = 105,802.13 × 44,405.06
  4. Step 4: Simplify right side
    76,688.07x = 4,698,149,179.74
  5. Step 5: Solve for x
    x = 4,698,149,179.74/76,688.07
  6. Step 6: Final answer
    x = 61,263.10

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1.5x scale

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.