Home / 56,211.04-77,572.80-31,062.16

Finding the Fourth Proportional to 56,211.04, 77,572.80 and 31,062.16

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Solution

The fourth proportional to 56,211.04, 77,572.80 and 31,062.16 is: 42,866.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,211.04 : 77,572.80 = 31,062.16 : x
  2. Step 2: Convert to fraction form
    56,211.04/77,572.80 = 31,062.16/x
  3. Step 3: Cross multiply
    56,211.04x = 77,572.80 × 31,062.16
  4. Step 4: Simplify right side
    56,211.04x = 2,409,578,725.25
  5. Step 5: Solve for x
    x = 2,409,578,725.25/56,211.04
  6. Step 6: Final answer
    x = 42,866.65

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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.