Home / 72,746.28-100,417.05-47,595.78

Finding the Fourth Proportional to 72,746.28, 100,417.05 and 47,595.78

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Solution

The fourth proportional to 72,746.28, 100,417.05 and 47,595.78 is: 65,699.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,746.28 : 100,417.05 = 47,595.78 : x
  2. Step 2: Convert to fraction form
    72,746.28/100,417.05 = 47,595.78/x
  3. Step 3: Cross multiply
    72,746.28x = 100,417.05 × 47,595.78
  4. Step 4: Simplify right side
    72,746.28x = 4,779,427,820.05
  5. Step 5: Solve for x
    x = 4,779,427,820.05/72,746.28
  6. Step 6: Final answer
    x = 65,699.96

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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.