Home / 76,503.36-105,574.08-42,969.60

Finding the Fourth Proportional to 76,503.36, 105,574.08 and 42,969.60

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Solution

The fourth proportional to 76,503.36, 105,574.08 and 42,969.60 is: 59,297.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,503.36 : 105,574.08 = 42,969.60 : x
  2. Step 2: Convert to fraction form
    76,503.36/105,574.08 = 42,969.60/x
  3. Step 3: Cross multiply
    76,503.36x = 105,574.08 × 42,969.60
  4. Step 4: Simplify right side
    76,503.36x = 4,536,475,987.97
  5. Step 5: Solve for x
    x = 4,536,475,987.97/76,503.36
  6. Step 6: Final answer
    x = 59,297.74

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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.