Home / 76,435.36-105,482.64-42,904.48

Finding the Fourth Proportional to 76,435.36, 105,482.64 and 42,904.48

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Solution

The fourth proportional to 76,435.36, 105,482.64 and 42,904.48 is: 59,209.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,435.36 : 105,482.64 = 42,904.48 : x
  2. Step 2: Convert to fraction form
    76,435.36/105,482.64 = 42,904.48/x
  3. Step 3: Cross multiply
    76,435.36x = 105,482.64 × 42,904.48
  4. Step 4: Simplify right side
    76,435.36x = 4,525,677,818.23
  5. Step 5: Solve for x
    x = 4,525,677,818.23/76,435.36
  6. Step 6: Final answer
    x = 59,209.22

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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.