Home / 56,661.12-78,193.35-31,510.62

Finding the Fourth Proportional to 56,661.12, 78,193.35 and 31,510.62

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Solution

The fourth proportional to 56,661.12, 78,193.35 and 31,510.62 is: 43,485.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,661.12 : 78,193.35 = 31,510.62 : x
  2. Step 2: Convert to fraction form
    56,661.12/78,193.35 = 31,510.62/x
  3. Step 3: Cross multiply
    56,661.12x = 78,193.35 × 31,510.62
  4. Step 4: Simplify right side
    56,661.12x = 2,463,920,938.38
  5. Step 5: Solve for x
    x = 2,463,920,938.38/56,661.12
  6. Step 6: Final answer
    x = 43,485.21

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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.