Home / 91,478.68-126,244.51-56,561.00

Finding the Fourth Proportional to 91,478.68, 126,244.51 and 56,561.00

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Solution

The fourth proportional to 91,478.68, 126,244.51 and 56,561.00 is: 78,056.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,478.68 : 126,244.51 = 56,561.00 : x
  2. Step 2: Convert to fraction form
    91,478.68/126,244.51 = 56,561.00/x
  3. Step 3: Cross multiply
    91,478.68x = 126,244.51 × 56,561.00
  4. Step 4: Simplify right side
    91,478.68x = 7,140,514,957.48
  5. Step 5: Solve for x
    x = 7,140,514,957.48/91,478.68
  6. Step 6: Final answer
    x = 78,056.60

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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.