Home / 86,985.02-130,498.29-30,830.04

Finding the Fourth Proportional to 86,985.02, 130,498.29 and 30,830.04

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Solution

The fourth proportional to 86,985.02, 130,498.29 and 30,830.04 is: 46,252.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,985.02 : 130,498.29 = 30,830.04 : x
  2. Step 2: Convert to fraction form
    86,985.02/130,498.29 = 30,830.04/x
  3. Step 3: Cross multiply
    86,985.02x = 130,498.29 × 30,830.04
  4. Step 4: Simplify right side
    86,985.02x = 4,023,267,041.85
  5. Step 5: Solve for x
    x = 4,023,267,041.85/86,985.02
  6. Step 6: Final answer
    x = 46,252.41

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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.