Home / 76,670.08-105,803.52-43,136.16

Finding the Fourth Proportional to 76,670.08, 105,803.52 and 43,136.16

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Solution

The fourth proportional to 76,670.08, 105,803.52 and 43,136.16 is: 59,527.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,670.08 : 105,803.52 = 43,136.16 : x
  2. Step 2: Convert to fraction form
    76,670.08/105,803.52 = 43,136.16/x
  3. Step 3: Cross multiply
    76,670.08x = 105,803.52 × 43,136.16
  4. Step 4: Simplify right side
    76,670.08x = 4,563,957,567.28
  5. Step 5: Solve for x
    x = 4,563,957,567.28/76,670.08
  6. Step 6: Final answer
    x = 59,527.23

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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.