Home / 287,034.04-430,643.34-87,393.10

Finding the Fourth Proportional to 287,034.04, 430,643.34 and 87,393.10

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Solution

The fourth proportional to 287,034.04, 430,643.34 and 87,393.10 is: 131,117.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,034.04 : 430,643.34 = 87,393.10 : x
  2. Step 2: Convert to fraction form
    287,034.04/430,643.34 = 87,393.10/x
  3. Step 3: Cross multiply
    287,034.04x = 430,643.34 × 87,393.10
  4. Step 4: Simplify right side
    287,034.04x = 37,635,256,476.95
  5. Step 5: Solve for x
    x = 37,635,256,476.95/287,034.04
  6. Step 6: Final answer
    x = 131,117.75

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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.