Home / 105,539.59-145,643.16-57,792.93

Finding the Fourth Proportional to 105,539.59, 145,643.16 and 57,792.93

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Solution

The fourth proportional to 105,539.59, 145,643.16 and 57,792.93 is: 79,753.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,539.59 : 145,643.16 = 57,792.93 : x
  2. Step 2: Convert to fraction form
    105,539.59/145,643.16 = 57,792.93/x
  3. Step 3: Cross multiply
    105,539.59x = 145,643.16 × 57,792.93
  4. Step 4: Simplify right side
    105,539.59x = 8,417,144,950.86
  5. Step 5: Solve for x
    x = 8,417,144,950.86/105,539.59
  6. Step 6: Final answer
    x = 79,753.44

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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.