Home / 105,412.83-145,473.27-57,666.17

Finding the Fourth Proportional to 105,412.83, 145,473.27 and 57,666.17

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Solution

The fourth proportional to 105,412.83, 145,473.27 and 57,666.17 is: 79,581.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,412.83 : 145,473.27 = 57,666.17 : x
  2. Step 2: Convert to fraction form
    105,412.83/145,473.27 = 57,666.17/x
  3. Step 3: Cross multiply
    105,412.83x = 145,473.27 × 57,666.17
  4. Step 4: Simplify right side
    105,412.83x = 8,388,885,590.91
  5. Step 5: Solve for x
    x = 8,388,885,590.91/105,412.83
  6. Step 6: Final answer
    x = 79,581.26

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1.5x scale

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.