Home / 56,127.45-77,457.50-30,635.40

Finding the Fourth Proportional to 56,127.45, 77,457.50 and 30,635.40

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Solution

The fourth proportional to 56,127.45, 77,457.50 and 30,635.40 is: 42,277.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,127.45 : 77,457.50 = 30,635.40 : x
  2. Step 2: Convert to fraction form
    56,127.45/77,457.50 = 30,635.40/x
  3. Step 3: Cross multiply
    56,127.45x = 77,457.50 × 30,635.40
  4. Step 4: Simplify right side
    56,127.45x = 2,372,941,495.50
  5. Step 5: Solve for x
    x = 2,372,941,495.50/56,127.45
  6. Step 6: Final answer
    x = 42,277.74

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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.