Home / 56,875.65-78,487.86-31,382.25

Finding the Fourth Proportional to 56,875.65, 78,487.86 and 31,382.25

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Solution

The fourth proportional to 56,875.65, 78,487.86 and 31,382.25 is: 43,307.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,875.65 : 78,487.86 = 31,382.25 : x
  2. Step 2: Convert to fraction form
    56,875.65/78,487.86 = 31,382.25/x
  3. Step 3: Cross multiply
    56,875.65x = 78,487.86 × 31,382.25
  4. Step 4: Simplify right side
    56,875.65x = 2,463,125,644.49
  5. Step 5: Solve for x
    x = 2,463,125,644.49/56,875.65
  6. Step 6: Final answer
    x = 43,307.21

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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.