Home / 74,547.02-102,876.80-40,557.39

Finding the Fourth Proportional to 74,547.02, 102,876.80 and 40,557.39

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Solution

The fourth proportional to 74,547.02, 102,876.80 and 40,557.39 is: 55,970.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,547.02 : 102,876.80 = 40,557.39 : x
  2. Step 2: Convert to fraction form
    74,547.02/102,876.80 = 40,557.39/x
  3. Step 3: Cross multiply
    74,547.02x = 102,876.80 × 40,557.39
  4. Step 4: Simplify right side
    74,547.02x = 4,172,414,296.77
  5. Step 5: Solve for x
    x = 4,172,414,296.77/74,547.02
  6. Step 6: Final answer
    x = 55,970.24

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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.