Home / 56,041.41-77,336.63-30,547.78

Finding the Fourth Proportional to 56,041.41, 77,336.63 and 30,547.78

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Solution

The fourth proportional to 56,041.41, 77,336.63 and 30,547.78 is: 42,155.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,041.41 : 77,336.63 = 30,547.78 : x
  2. Step 2: Convert to fraction form
    56,041.41/77,336.63 = 30,547.78/x
  3. Step 3: Cross multiply
    56,041.41x = 77,336.63 × 30,547.78
  4. Step 4: Simplify right side
    56,041.41x = 2,362,462,359.18
  5. Step 5: Solve for x
    x = 2,362,462,359.18/56,041.41
  6. Step 6: Final answer
    x = 42,155.66

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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.