Home / 76,416.04-105,322.98-65,762.92

Finding the Fourth Proportional to 76,416.04, 105,322.98 and 65,762.92

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Solution

The fourth proportional to 76,416.04, 105,322.98 and 65,762.92 is: 90,639.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,416.04 : 105,322.98 = 65,762.92 : x
  2. Step 2: Convert to fraction form
    76,416.04/105,322.98 = 65,762.92/x
  3. Step 3: Cross multiply
    76,416.04x = 105,322.98 × 65,762.92
  4. Step 4: Simplify right side
    76,416.04x = 6,926,346,707.90
  5. Step 5: Solve for x
    x = 6,926,346,707.90/76,416.04
  6. Step 6: Final answer
    x = 90,639.96

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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.