Home / 105,030.08-157,499.04-39,320

Finding the Fourth Proportional to 105,030.08, 157,499.04 and 39,320

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Solution

The fourth proportional to 105,030.08, 157,499.04 and 39,320 is: 58,962.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,030.08 : 157,499.04 = 39,320 : x
  2. Step 2: Convert to fraction form
    105,030.08/157,499.04 = 39,320/x
  3. Step 3: Cross multiply
    105,030.08x = 157,499.04 × 39,320
  4. Step 4: Simplify right side
    105,030.08x = 6,192,862,252.80
  5. Step 5: Solve for x
    x = 6,192,862,252.80/105,030.08
  6. Step 6: Final answer
    x = 58,962.75

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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.