Home / 56,275.63-77,660.47-30,782.13

Finding the Fourth Proportional to 56,275.63, 77,660.47 and 30,782.13

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Solution

The fourth proportional to 56,275.63, 77,660.47 and 30,782.13 is: 42,479.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,275.63 : 77,660.47 = 30,782.13 : x
  2. Step 2: Convert to fraction form
    56,275.63/77,660.47 = 30,782.13/x
  3. Step 3: Cross multiply
    56,275.63x = 77,660.47 × 30,782.13
  4. Step 4: Simplify right side
    56,275.63x = 2,390,554,430.65
  5. Step 5: Solve for x
    x = 2,390,554,430.65/56,275.63
  6. Step 6: Final answer
    x = 42,479.39

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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.