Home / 56,705.13-78,277.32-40,362.98

Finding the Fourth Proportional to 56,705.13, 78,277.32 and 40,362.98

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Solution

The fourth proportional to 56,705.13, 78,277.32 and 40,362.98 is: 55,718.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,705.13 : 78,277.32 = 40,362.98 : x
  2. Step 2: Convert to fraction form
    56,705.13/78,277.32 = 40,362.98/x
  3. Step 3: Cross multiply
    56,705.13x = 78,277.32 × 40,362.98
  4. Step 4: Simplify right side
    56,705.13x = 3,159,505,510.23
  5. Step 5: Solve for x
    x = 3,159,505,510.23/56,705.13
  6. Step 6: Final answer
    x = 55,718.16

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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.