Home / 105,423.36-145,482.96-57,676.08

Finding the Fourth Proportional to 105,423.36, 145,482.96 and 57,676.08

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Solution

The fourth proportional to 105,423.36, 145,482.96 and 57,676.08 is: 79,592.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,423.36 : 145,482.96 = 57,676.08 : x
  2. Step 2: Convert to fraction form
    105,423.36/145,482.96 = 57,676.08/x
  3. Step 3: Cross multiply
    105,423.36x = 145,482.96 × 57,676.08
  4. Step 4: Simplify right side
    105,423.36x = 8,390,886,839.60
  5. Step 5: Solve for x
    x = 8,390,886,839.60/105,423.36
  6. Step 6: Final answer
    x = 79,592.29

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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.