Home / 72,312.26-99,779.04-45,435.74

Finding the Fourth Proportional to 72,312.26, 99,779.04 and 45,435.74

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Solution

The fourth proportional to 72,312.26, 99,779.04 and 45,435.74 is: 62,693.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,312.26 : 99,779.04 = 45,435.74 : x
  2. Step 2: Convert to fraction form
    72,312.26/99,779.04 = 45,435.74/x
  3. Step 3: Cross multiply
    72,312.26x = 99,779.04 × 45,435.74
  4. Step 4: Simplify right side
    72,312.26x = 4,533,534,019.99
  5. Step 5: Solve for x
    x = 4,533,534,019.99/72,312.26
  6. Step 6: Final answer
    x = 62,693.85

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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.