Home / 76,323.80-105,333.14-42,343.23

Finding the Fourth Proportional to 76,323.80, 105,333.14 and 42,343.23

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Solution

The fourth proportional to 76,323.80, 105,333.14 and 42,343.23 is: 58,437.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,323.80 : 105,333.14 = 42,343.23 : x
  2. Step 2: Convert to fraction form
    76,323.80/105,333.14 = 42,343.23/x
  3. Step 3: Cross multiply
    76,323.80x = 105,333.14 × 42,343.23
  4. Step 4: Simplify right side
    76,323.80x = 4,460,145,373.64
  5. Step 5: Solve for x
    x = 4,460,145,373.64/76,323.80
  6. Step 6: Final answer
    x = 58,437.15

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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.