Home / 77,861.04-107,448.19-42,051.03

Finding the Fourth Proportional to 77,861.04, 107,448.19 and 42,051.03

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Solution

The fourth proportional to 77,861.04, 107,448.19 and 42,051.03 is: 58,030.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,861.04 : 107,448.19 = 42,051.03 : x
  2. Step 2: Convert to fraction form
    77,861.04/107,448.19 = 42,051.03/x
  3. Step 3: Cross multiply
    77,861.04x = 107,448.19 × 42,051.03
  4. Step 4: Simplify right side
    77,861.04x = 4,518,307,061.14
  5. Step 5: Solve for x
    x = 4,518,307,061.14/77,861.04
  6. Step 6: Final answer
    x = 58,030.40

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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.