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Finding the Fourth Proportional to 72,483.59, 100,030.73 and 45,275.79

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Solution

The fourth proportional to 72,483.59, 100,030.73 and 45,275.79 is: 62,482.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,483.59 : 100,030.73 = 45,275.79 : x
  2. Step 2: Convert to fraction form
    72,483.59/100,030.73 = 45,275.79/x
  3. Step 3: Cross multiply
    72,483.59x = 100,030.73 × 45,275.79
  4. Step 4: Simplify right side
    72,483.59x = 4,528,969,598.49
  5. Step 5: Solve for x
    x = 4,528,969,598.49/72,483.59
  6. Step 6: Final answer
    x = 62,482.69

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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.