Home / 74,053.30-111,030.72-40,789

Finding the Fourth Proportional to 74,053.30, 111,030.72 and 40,789

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Solution

The fourth proportional to 74,053.30, 111,030.72 and 40,789 is: 61,156.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,053.30 : 111,030.72 = 40,789 : x
  2. Step 2: Convert to fraction form
    74,053.30/111,030.72 = 40,789/x
  3. Step 3: Cross multiply
    74,053.30x = 111,030.72 × 40,789
  4. Step 4: Simplify right side
    74,053.30x = 4,528,832,038.08
  5. Step 5: Solve for x
    x = 4,528,832,038.08/74,053.30
  6. Step 6: Final answer
    x = 61,156.38

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.